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Qiao J, Borriss R, Sun K, Zhang R, Chen X, Liu Y, Liu Y. Research advances in the identification of regulatory mechanisms of surfactin production by Bacillus: a review. Microb Cell Fact 2024; 23:100. [PMID: 38566071 PMCID: PMC10988940 DOI: 10.1186/s12934-024-02372-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
Surfactin is a cyclic hexalipopeptide compound, nonribosomal synthesized by representatives of the Bacillus subtilis species complex which includes B. subtilis group and its closely related species, such as B. subtilis subsp subtilis, B. subtilis subsp spizizenii, B. subtilis subsp inaquosorum, B. atrophaeus, B. amyloliquefaciens, B. velezensis (Steinke mSystems 6: e00057, 2021) It functions as a biosurfactant and signaling molecule and has antibacterial, antiviral, antitumor, and plant disease resistance properties. The Bacillus lipopeptides play an important role in agriculture, oil recovery, cosmetics, food processing and pharmaceuticals, but the natural yield of surfactin synthesized by Bacillus is low. This paper reviews the regulatory pathways and mechanisms that affect surfactin synthesis and release, highlighting the regulatory genes involved in the transcription of the srfAA-AD operon. The several ways to enhance surfactin production, such as governing expression of the genes involved in synthesis and regulation of surfactin synthesis and transport, removal of competitive pathways, optimization of media, and fermentation conditions were commented. This review will provide a theoretical platform for the systematic genetic modification of high-yielding strains of surfactin.
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Affiliation(s)
- Junqing Qiao
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Rainer Borriss
- Institute of Biology, Humboldt University Berlin, Berlin, Germany.
| | - Kai Sun
- College of Plant Protection, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Rongsheng Zhang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
| | - Xijun Chen
- College of Plant Protection, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Youzhou Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China.
| | - Yongfeng Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China.
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Jähne J, Herfort S, Doellinger J, Lasch P, Tam LTT, Borriss R, Vater J. Investigation of the potential of Brevibacillus spp. for the biosynthesis of nonribosomally produced bioactive compounds by combination of genome mining with MALDI-TOF mass spectrometry. Front Microbiol 2023; 14:1286565. [PMID: 38156002 PMCID: PMC10753013 DOI: 10.3389/fmicb.2023.1286565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/02/2023] [Indexed: 12/30/2023] Open
Abstract
The biosynthetic potential of 11 Brevibacillus spp. strains was investigated by combination of genome mining with mass spectrometric analysis using MALDI-TOF mass spectrometry. These endophytic, plant associated Brevibacillus strains were isolated from crop plants, such as coffee and black pepper, in Vietnam. Draft genomes of these strains were available. They were classified (a) by comparison with type strains and a collection of genome-sequenced Brevibacillus spp. deposited in the NCBI data base as well as (b) by construction of a phylogenetic tree from the core sequences of publicly available genomes of Brevibacillus strains. They were identified as Brevibacillus brevis (1 strain); parabrevis (2 strains); porteri (3 strains); and 5 novel Brevibacillus genomospecies. Our work was specifically focused on the detection and characterization of nonribosomal peptides produced by these strains. Structural characterization of these compounds was performed by LIFT-MALDI-TOF/TOF mass spectrometric sequence analysis. The highlights of our work were the demonstration of the tyrocidines, a well-known family of cyclodecapeptides of great structural variability, as the main products of all investigated strains and the identification of a novel class of pentapeptides produced by B. brevis; B. schisleri; and B. porteri which we designate as brevipentins. Our biosynthetic studies demonstrate that knowledge of their biosynthetic capacity can efficiently assist classification of Brevibacillus species.
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Affiliation(s)
- Jennifer Jähne
- Centre for Biological Threads and Special Pathogens, Proteomics and Spectroscopy (ZBS6), Robert Koch-Institute, Berlin, Germany
| | - Stefanie Herfort
- Centre for Biological Threads and Special Pathogens, Proteomics and Spectroscopy (ZBS6), Robert Koch-Institute, Berlin, Germany
| | - Joerg Doellinger
- Centre for Biological Threads and Special Pathogens, Proteomics and Spectroscopy (ZBS6), Robert Koch-Institute, Berlin, Germany
| | - Peter Lasch
- Centre for Biological Threads and Special Pathogens, Proteomics and Spectroscopy (ZBS6), Robert Koch-Institute, Berlin, Germany
| | - Le Thi Thanh Tam
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Rainer Borriss
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
- Institute of Biology, Humboldt University Berlin, Berlin, Germany
| | - Joachim Vater
- Centre for Biological Threads and Special Pathogens, Proteomics and Spectroscopy (ZBS6), Robert Koch-Institute, Berlin, Germany
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Borriss R, Keswani C. Biological Control of the Plant Pathogens. Microorganisms 2023; 11:2930. [PMID: 38138074 PMCID: PMC10745989 DOI: 10.3390/microorganisms11122930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
(This article belongs to the Special Issue Biological Control of the Plant Pathogens [...].
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Affiliation(s)
- Rainer Borriss
- Institute of Biology, Humboldt University, 10115 Berlin, Germany
- Institute of Marine Biotechnology e.V., 17489 Greifswald, Germany
| | - Chetan Keswani
- Academy of Biology and Biotechnology, Southern Federal University, 44090 Rostov-on-Don, Russia
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Yu C, Qiao J, Ali Q, Jiang Q, Song Y, Zhu L, Gu Q, Borriss R, Dong S, Gao X, Wu H. degQ associated with the degS/degU two-component system regulates biofilm formation, antimicrobial metabolite production, and biocontrol activity in Bacillus velezensis DMW1. Mol Plant Pathol 2023; 24:1510-1521. [PMID: 37731193 PMCID: PMC10632791 DOI: 10.1111/mpp.13389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/13/2023] [Accepted: 09/05/2023] [Indexed: 09/22/2023]
Abstract
The gram-positive bacterium Bacillus velezensis strain DMW1 produces a high level of antimicrobial metabolites that can suppress the growth of phytopathogens. We investigated the mechanism used by degQ and the degS/degU two-component system to regulate the biocontrol characteristics of DMW1. When degQ and degU were deleted, the biofilm formation, cell motility, colonization activities, and antifungal abilities of ΔdegQ and ΔdegU were significantly reduced compared to wild-type DMW1. The expression levels of biofilm-related genes (epsA, epsB, epsC, and tasA) and swarming-related genes (swrA and swrB) were all down-regulated. We also evaluated the impact on secondary metabolites of these two genes. The degQ and degU genes reduced surfactin and macrolactin production and up-regulated the production of fengycin, iturin, bacillaene, and difficidin metabolites. The reverse transcription-quantitative PCR results were consistent with these observations. Electrophoretic mobility shift assay and microscale thermophoresis revealed that DegU can bind to the promoter regions of these six antimicrobial metabolite genes and regulate their synthesis. In conclusion, we provided systematic evidence to demonstrate that the degQ and degU genes are important regulators of multicellular behaviour and antimicrobial metabolic processes in B. velezensis DMW1 and suggested novel amenable strains to be used for the industrial production of antimicrobial metabolites.
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Affiliation(s)
- Chenjie Yu
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Junqing Qiao
- Jiangsu Academy of Agricultural SciencesInstitute of Plant ProtectionNanjingChina
| | - Qurban Ali
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Qifan Jiang
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Yan Song
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Linli Zhu
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Qin Gu
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Rainer Borriss
- Institut für BiologieHumboldt University BerlinBerlinGermany
| | - Suomeng Dong
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Xuewen Gao
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
| | - Huijun Wu
- College of Plant Protection, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Sanya Institute of Nanjing Agricultural UniversityNanjing Agricultural UniversityNanjingChina
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Lagzian A, Riseh RS, Sarikhan S, Ghorbani A, Khodaygan P, Borriss R, Guzzi PH, Veltri P. Genome mining conformance to metabolite profile of Bacillus strains to control potato pathogens. Sci Rep 2023; 13:19095. [PMID: 37925555 PMCID: PMC10625545 DOI: 10.1038/s41598-023-46672-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 11/03/2023] [Indexed: 11/06/2023] Open
Abstract
Biocontrol agents are safe and effective methods for controlling plant disease pathogens, such as Fusarium solani, which causes dry wilt, and Pectobacterium spp., responsible for potato soft rot disease. Discovering agents that can effectively control both fungal and bacterial pathogens in potatoes has always presented a challenge. Biological controls were investigated using 500 bacterial strains isolated from rhizospheric microbial communities, along with two promising biocontrol strains: Pseudomonas (T17-4 and VUPf5). Bacillus velezensis (Q12 and US1) and Pseudomonas chlororaphis VUPf5 exhibited the highest inhibition of fungal growth and pathogenicity in both laboratory (48%, 48%, 38%) and greenhouse (100%, 85%, 90%) settings. Q12 demonstrated better control against bacterial pathogens in vivo (approximately 50%). Whole-genome sequencing of Q12 and US1 revealed a genome size of approximately 4.1 Mb. Q12 had 4413 gene IDs and 4300 coding sequences, while US1 had 4369 gene IDs and 4255 coding sequences. Q12 exhibited a higher number of genes classified under functional subcategories related to stress response, cell wall, capsule, levansucrase synthesis, and polysaccharide metabolism. Both Q12 and US1 contained eleven secondary metabolite gene clusters as identified by the antiSMASH and RAST servers. Notably, Q12 possessed the antibacterial locillomycin and iturin A gene clusters, which were absent in US1. This genetic information suggests that Q12 may have a more pronounced control over bacterial pathogens compared to US1. Metabolic profiling of the superior strains, as determined by LC/MS/MS, validated our genetic findings. The investigated strains produced compounds such as iturin A, bacillomycin D, surfactin, fengycin, phenazine derivatives, etc. These compounds reduced spore production and caused deformation of the hyphae in F. solani. In contrast, B. velezensis UR1, which lacked the production of surfactin, fengycin, and iturin, did not affect these structures and failed to inhibit the growth of any pathogens. Our findings suggest that locillomycin and iturin A may contribute to the enhanced control of bacterial pectolytic rot by Q12.
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Affiliation(s)
- Arezoo Lagzian
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Roohallah Saberi Riseh
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Sajjad Sarikhan
- Molecular Bank, Iranian Biological Resource Center (IBRC), ACECR, Tehran, Iran
| | - Abozar Ghorbani
- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute, Karaj, Iran.
| | - Pejman Khodaygan
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Rainer Borriss
- Institute of Biology, Humboldt University Berlin, Berlin, Germany
| | - Pietro Hiram Guzzi
- Department of Surgical and Medical Sciences, University of Catanzaro, Catanzaro, Italy.
| | - Pierangelo Veltri
- Department of Informatics Modeling Electronics and System Engineering, University of Calabria, Calabria, Italy
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Vater J, Tam LTT, Jähne J, Herfort S, Blumenscheit C, Schneider A, Luong PT, Thao LTP, Blom J, Klee SR, Schweder T, Lasch P, Borriss R. Plant-Associated Representatives of the Bacillus cereus Group Are a Rich Source of Antimicrobial Compounds. Microorganisms 2023; 11:2677. [PMID: 38004689 PMCID: PMC10672896 DOI: 10.3390/microorganisms11112677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
Seventeen bacterial strains able to suppress plant pathogens have been isolated from healthy Vietnamese crop plants and taxonomically assigned as members of the Bacillus cereus group. In order to prove their potential as biocontrol agents, we perform a comprehensive analysis that included the whole-genome sequencing of selected strains and the mining for genes and gene clusters involved in the synthesis of endo- and exotoxins and secondary metabolites, such as antimicrobial peptides (AMPs). Kurstakin, thumolycin, and other AMPs were detected and characterized by different mass spectrometric methods, such as MALDI-TOF-MS and LIFT-MALDI-TOF/TOF fragment analysis. Based on their whole-genome sequences, the plant-associated isolates were assigned to the following species and subspecies: B. cereus subsp. cereus (6), B. cereus subsp. bombysepticus (5), Bacillus tropicus (2), and Bacillus pacificus. These three isolates represent novel genomospecies. Genes encoding entomopathogenic crystal and vegetative proteins were detected in B. cereus subsp. bombysepticus TK1. The in vitro assays revealed that many plant-associated isolates enhanced plant growth and suppressed plant pathogens. Our findings indicate that the plant-associated representatives of the B. cereus group are a rich source of putative antimicrobial compounds with potential in sustainable agriculture. However, the presence of virulence genes might restrict their application as biologicals in agriculture.
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Affiliation(s)
- Joachim Vater
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany; (J.V.); (J.J.); (S.H.); (C.B.); (A.S.); (P.L.)
| | - Le Thi Thanh Tam
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Duc Thang, Bac Tu Liem, Hanoi, Vietnam; (L.T.T.T.); (P.T.L.); (L.T.P.T.)
| | - Jennifer Jähne
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany; (J.V.); (J.J.); (S.H.); (C.B.); (A.S.); (P.L.)
| | - Stefanie Herfort
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany; (J.V.); (J.J.); (S.H.); (C.B.); (A.S.); (P.L.)
| | - Christian Blumenscheit
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany; (J.V.); (J.J.); (S.H.); (C.B.); (A.S.); (P.L.)
| | - Andy Schneider
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany; (J.V.); (J.J.); (S.H.); (C.B.); (A.S.); (P.L.)
| | - Pham Thi Luong
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Duc Thang, Bac Tu Liem, Hanoi, Vietnam; (L.T.T.T.); (P.T.L.); (L.T.P.T.)
| | - Le Thi Phuong Thao
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Duc Thang, Bac Tu Liem, Hanoi, Vietnam; (L.T.T.T.); (P.T.L.); (L.T.P.T.)
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig Universität Giessen, 35392 Giessen, Germany;
| | - Silke R. Klee
- Highly Pathogenic Microorganisms Unit (ZBS2), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany;
| | - Thomas Schweder
- Institute of Marine Biotechnology e.V. (IMaB), 17489 Greifswald, Germany;
- Pharmaceutical Biotechnology, University of Greifswald, 17489 Greifswald, Germany
| | - Peter Lasch
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, 13353 Berlin, Germany; (J.V.); (J.J.); (S.H.); (C.B.); (A.S.); (P.L.)
| | - Rainer Borriss
- Institute of Marine Biotechnology e.V. (IMaB), 17489 Greifswald, Germany;
- Institute of Biology, Humboldt University Berlin, 10115 Berlin, Germany
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Salazar B, Ortiz A, Keswani C, Minkina T, Mandzhieva S, Pratap Singh S, Rekadwad B, Borriss R, Jain A, Singh HB, Sansinenea E. Bacillus spp. as Bio-factories for Antifungal Secondary Metabolites: Innovation Beyond Whole Organism Formulations. Microb Ecol 2023; 86:1-24. [PMID: 35604432 DOI: 10.1007/s00248-022-02044-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Several fungi act as parasites for crops causing huge annual crop losses at both pre- and post-harvest stages. For years, chemical fungicides were the solution; however, their wide use has caused environmental contamination and human health problems. For this reason, the use of biofungicides has been in practice as a green solution against fungal phytopathogens. In the context of a more sustainable agriculture, microbial biofungicides have the largest share among the commercial biocontrol products that are available in the market. Precisely, the genus Bacillus has been largely studied for the management of plant pathogenic fungi because they offer a chemically diverse arsenal of antifungal secondary metabolites, which have spawned a heightened industrial engrossment of it as a biopesticide. In this sense, it is indispensable to know the wide arsenal that Bacillus genus has to apply these products for sustainable agriculture. Having this idea in our minds, in this review, secondary metabolites from Bacillus having antifungal activity are chemically and structurally described giving details of their action against several phytopathogens. Knowing the current status of Bacillus secreted antifungals is the base for the goal to apply these in agriculture and it is addressed in depth in the second part of this review.
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Affiliation(s)
- Bruno Salazar
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México
| | - Aurelio Ortiz
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México
| | - Chetan Keswani
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Saglara Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Satyendra Pratap Singh
- Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Bhagwan Rekadwad
- Division of Microbiology and Biotechnology, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Mangalore, 575018, Karnataka, India
| | - Rainer Borriss
- Institut Für Agrar- Und Gartenbauwissenschaften, Fachgebiet Phytomedizin, Humboldt-Universität Zu Berlin, Lentze-Allee 55-57, 14195, Berlin, Germany
| | - Akansha Jain
- Division of Plant Biology, Bose Institute, CIT Road, Kankurgachi, Kolkata, India
| | - Harikesh B Singh
- Department of Biotechnology, GLA University, Mathura, 281406, India
| | - Estibaliz Sansinenea
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México.
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Thanh Tam LT, Jähne J, Luong PT, Phuong Thao LT, Nhat LM, Blumenscheit C, Schneider A, Blom J, Kim Chung LT, Anh Minh PL, Thanh HM, Hoat TX, Hoat PC, Son TC, Weinmann M, Herfort S, Vater J, Van Liem N, Schweder T, Lasch P, Borriss R. Two plant-associated Bacillus velezensis strains selected after genome analysis, metabolite profiling, and with proved biocontrol potential, were enhancing harvest yield of coffee and black pepper in large field trials. Front Plant Sci 2023; 14:1194887. [PMID: 37426979 PMCID: PMC10327441 DOI: 10.3389/fpls.2023.1194887] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/01/2023] [Indexed: 07/11/2023]
Abstract
Elimination of chemically synthesized pesticides, such as fungicides and nematicides, in agricultural products is a key to successful practice of the Vietnamese agriculture. We describe here the route for developing successful biostimulants based on members of the Bacillus subtilis species complex. A number of endospore-forming Gram-positive bacterial strains with antagonistic action against plant pathogens were isolated from Vietnamese crop plants. Based on their draft genome sequence, thirty of them were assigned to the Bacillus subtilis species complex. Most of them were assigned to the species Bacillus velezensis. Whole genome sequencing of strains BT2.4 and BP1.2A corroborated their close relatedness to B. velezensis FZB42, the model strain for Gram-positive plant growth-promoting bacteria. Genome mining revealed that at least 15 natural product biosynthesis gene clusters (BGCs) are well conserved in all B. velezensis strains. In total, 36 different BGCs were identified in the genomes of the strains representing B. velezensis, B. subtilis, Bacillus tequilensis, and Bacillus. altitudinis. In vitro and in vivo assays demonstrated the potential of the B. velezensis strains to enhance plant growth and to suppress phytopathogenic fungi and nematodes. Due to their promising potential to stimulate plant growth and to support plant health, the B. velezensis strains TL7 and S1 were selected as starting material for the development of novel biostimulants, and biocontrol agents efficient in protecting the important Vietnamese crop plants black pepper and coffee against phytopathogens. The results of the large-scale field trials performed in the Central Highlands in Vietnam corroborated that TL7 and S1 are efficient in stimulating plant growth and protecting plant health in large-scale applications. It was shown that treatment with both bioformulations resulted in prevention of the pathogenic pressure exerted by nematodes, fungi, and oomycetes, and increased harvest yield in coffee, and pepper.
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Affiliation(s)
- Le Thi Thanh Tam
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Jennifer Jähne
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Pham Thi Luong
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Le Thi Phuong Thao
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Le Mai Nhat
- Science and International Co-operation Department, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Christian Blumenscheit
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Andy Schneider
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig-Universität Giessen, Giessen, Germany
| | - Le Thi Kim Chung
- Institute for Preventive Medicine and Public Health, Hanoi Medical University, Ha Noi, Vietnam
| | - Pham Le Anh Minh
- Department of Biotechnology, Vietnam National University of Agriculture, Ha Noi, Vietnam
| | - Ha Minh Thanh
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Trinh Xuan Hoat
- Science and International Co-operation Department, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Pham Cong Hoat
- Department of Science and Technology for Economic Technical Branches, Ministry of Science and Technology (MOST), Hanoi, Vietnam
| | - Tran Cao Son
- Laboratory of Food Toxicology and Allergens, National Institute for Food Control (NIFC), Ha Noi, Vietnam
| | - Markus Weinmann
- Ernährungsphysiologie Der Kulturpflanzen, University of Hohenheim, Stuttgart, Germany
| | - Stefanie Herfort
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Joachim Vater
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Nguyen Van Liem
- Science and International Co-operation Department, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Thomas Schweder
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
- Pharmaceutical Biotechnology, University of Greifswald, Greifswald, Germany
| | - Peter Lasch
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Rainer Borriss
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
- Institute of Biology, Humboldt University, Berlin, Germany
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Yu C, Chen H, zhu L, Song Y, Jiang Q, Zhang Y, Ali Q, Gu Q, Gao X, Borriss R, Dong S, Wu H. Profiling of Antimicrobial Metabolites Synthesized by the Endophytic and Genetically Amenable Biocontrol Strain Bacillus velezensis DMW1. Microbiol Spectr 2023; 11:e0003823. [PMID: 36809029 PMCID: PMC10100683 DOI: 10.1128/spectrum.00038-23] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 01/26/2023] [Indexed: 02/23/2023] Open
Abstract
The genus Bacillus is one of the most important genera for the biological control of plant diseases that are caused by various phytopathogens. The endophytic Bacillus strain DMW1 was isolated from the inner tissues of potato tubers and exhibited strong biocontrol activity. Based on its whole-genome sequence, DMW1 belongs to the Bacillus velezensis species, and it is similar to the model strain B. velezensis FZB42. 12 secondary metabolite biosynthetic gene clusters (BGCs), including two unknown function BGCs, were detected in the DMW1 genome. The strain was shown to be genetically amenable, and seven secondary metabolites acting antagonistically against plant pathogens were identified by a combined genetic and chemical approach. Strain DMW1 did significantly improve the growth of tomato and soybean seedlings, and it was able to control the Phytophthora sojae and Ralstonia solanacearum that were present in the plant seedlings. Due to these properties, the endophytic strain DMW1 appears to be a promising candidate for comparative investigations performed together with the Gram-positive model rhizobacterium FZB42, which is only able to colonize the rhizoplane. IMPORTANCE Phytopathogens are responsible for the wide spread of plant diseases as well as for great losses of crop yields. At present, the strategies used to control plant disease, including the development of resistant cultivars and chemical control, may become ineffective due to the adaptive evolution of pathogens. Therefore, the use of beneficial microorganisms to deal with plant diseases attracts great attention. In the present study, a new strain DMW1, belonging to the species B. velezensis, was discovered with outstanding biocontrol properties. It showed plant growth promotion and disease control abilities that are comparable with those of B. velezensis FZB42 under greenhouse conditions. According to a genomic analysis and a bioactive metabolites analysis, genes that are responsible for promoting plant growth were detected, and metabolites with different antagonistic activities were identified. Our data provide a basis for DMW1 to be further developed and applied as a biopesticide, which is similar to the closely related model strain FZB42.
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Affiliation(s)
- Chenjie Yu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Han Chen
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Linli zhu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Yan Song
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Qifan Jiang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Yaming Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Qurban Ali
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Qin Gu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Rainer Borriss
- Humboldt University Berlin, Institut für Biologie, Berlin, Germany
| | - Suomeng Dong
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
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Wu X, Fan Y, Wang R, Zhao Q, Ali Q, Wu H, Gu Q, Borriss R, Xie Y, Gao X. Bacillus halotolerans KKD1 induces physiological, metabolic and molecular reprogramming in wheat under saline condition. Front Plant Sci 2022; 13:978066. [PMID: 36035675 PMCID: PMC9404337 DOI: 10.3389/fpls.2022.978066] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Salt stress decreases plant growth and is a major threat to crop yields worldwide. The present study aimed to alleviate salt stress in plants by inoculation with halophilic plant growth-promoting rhizobacteria (PGPR) isolated from an extreme environment in the Qinghai-Tibetan Plateau. Wheat plants inoculated with Bacillus halotolerans KKD1 showed increased seedling morphological parameters and physiological indexes. The expression of wheat genes directly involved in plant growth was upregulated in the presence of KKD1, as shown by real-time quantitative PCR (RT-qPCR) analysis. The metabolism of phytohormones, such as 6-benzylaminopurine and gibberellic acid were also enhanced. Mining of the KKD1 genome corroborated its potential plant growth promotion (PGP) and biocontrol properties. Moreover, KKD1 was able to support plant growth under salt stress by inducing a stress response in wheat by modulating phytohormone levels, regulating lipid peroxidation, accumulating betaine, and excluding Na+. In addition, KKD1 positively affected the soil nitrogen content, soil phosphorus content and soil pH. Our findings indicated that KKD1 is a promising candidate for encouraging wheat plant growth under saline conditions.
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Affiliation(s)
- Xiaohui Wu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- State Key Laboratory of Plateau Ecology and Agriculture, Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining, China
| | - Yaning Fan
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Ruoyi Wang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qian Zhao
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qurban Ali
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Huijun Wu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qin Gu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität, Berlin, Germany
- Nord Reet UG, Greifswald, Germany
| | - Yongli Xie
- State Key Laboratory of Plateau Ecology and Agriculture, Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining, China
| | - Xuewen Gao
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
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11
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Zhao Y, Yuan Z, Wang S, Wang H, Chao Y, Sederoff RR, Sederoff H, Yan H, Pan J, Peng M, Wu D, Borriss R, Niu B. Gene sdaB Is Involved in the Nematocidal Activity of Enterobacter ludwigii AA4 Against the Pine Wood Nematode Bursaphelenchus xylophilus. Front Microbiol 2022; 13:870519. [PMID: 35602027 PMCID: PMC9121001 DOI: 10.3389/fmicb.2022.870519] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Bursaphelenchus xylophilus, a plant parasitic nematode, is the causal agent of pine wilt, a devastating forest tree disease. Essentially, no efficient methods for controlling B. xylophilus and pine wilt disease have yet been developed. Enterobacter ludwigii AA4, isolated from the root of maize, has powerful nematocidal activity against B. xylophilus in a new in vitro dye exclusion test. The corrected mortality of the B. xylophilus treated by E. ludwigii AA4 or its cell extract reached 98.3 and 98.6%, respectively. Morphological changes in B. xylophilus treated with a cell extract from strain AA4 suggested that the death of B. xylophilus might be caused by an increased number of vacuoles in non-apoptotic cell death and the damage to tissues of the nematodes. In a greenhouse test, the disease index of the seedlings of Scots pine (Pinus sylvestris) treated with the cells of strain AA4 plus B. xylophilus or those treated by AA4 cell extract plus B. xylophilus was 38.2 and 30.3, respectively, was significantly lower than 92.5 in the control plants treated with distilled water and B. xylophilus. We created a sdaB gene knockout in strain AA4 by deleting the gene that was putatively encoding the beta-subunit of L-serine dehydratase through Red homologous recombination. The nematocidal and disease-suppressing activities of the knockout strain were remarkably impaired. Finally, we revealed a robust colonization of P. sylvestris seedling needles by E. ludwigii AA4, which is supposed to contribute to the disease-controlling efficacy of strain AA4. Therefore, E. ludwigii AA4 has significant potential to serve as an agent for the biological control of pine wilt disease caused by B. xylophilus.
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Affiliation(s)
- Yu Zhao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Zhibo Yuan
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Shuang Wang
- Administrative Office of the Summer Palace, Beijing Municipal Administration Center of Parks, Beijing, China
| | - Haoyu Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yanjie Chao
- The Center for Microbes, Development and Health (CMDH), Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Ronald R. Sederoff
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, United States
| | - Heike Sederoff
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, United States
| | - He Yan
- Center for Biological Disaster Prevention and Control, National Forestry and Grassland Administration, Shenyang, China
| | - Jialiang Pan
- Center for Biological Disaster Prevention and Control, National Forestry and Grassland Administration, Shenyang, China
| | - Mu Peng
- College of Biological Science and Technology, Hubei Minzu University, Enshi, China
| | - Di Wu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Rainer Borriss
- Nord Reet UG, Greifswald, Germany
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
- *Correspondence: Rainer Borriss,
| | - Ben Niu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
- Ben Niu,
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12
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Blumenscheit C, Jähne J, Schneider A, Blom J, Schweder T, Lasch P, Borriss R. Genome sequence data of Bacillus velezensis BP1.2A and BT2.4. Data Brief 2022; 41:107978. [PMID: 35242952 PMCID: PMC8885614 DOI: 10.1016/j.dib.2022.107978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 11/28/2022] Open
Abstract
Here, we report the complete genome sequence data of the biocontrol strains Bacillus velezensis BP1.2A and BT2.4 isolated from Vietnamese crop plants. The size of the genomes is 3,916,868 bp (BP1.2A), and 3,922,686 bp (BT2.4), respectively. The BioProjects have been deposited at NCBI GenBank. The GenBank accession numbers for the B. velezensis strains are PRJNA634914 (BP1.2A) and PRJNA634832 (BT2.4) for the BioProjects, CP085504 (BP1.2A) and CP085505 (BT2.4) for the chromosomes, GCA_013284785.2 (BP2.1A), and GCA_013284785.2 (BT2.4) for GenBank assembly accessions, and SAMN15012571 (BP1.2A) and SAMN15009897 (BT2.4) for the BioSamples. Both genomes were closely related to FZB42, the model strain for plant growth promoting bacilli.
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Affiliation(s)
- Christian Blumenscheit
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Jennifer Jähne
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Andy Schneider
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig Universität Giessen, Giessen, Germany
| | - Thomas Schweder
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
| | - Peter Lasch
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Rainer Borriss
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany.,Nordreet UG Greifswald, Germany
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13
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Han X, Shen D, Xiong Q, Bao B, Zhang W, Dai T, Zhao Y, Borriss R, Fan B. The Plant-Beneficial Rhizobacterium Bacillus velezensis FZB42 Controls the Soybean Pathogen Phytophthora sojae Due to Bacilysin Production. Appl Environ Microbiol 2021; 87:e0160121. [PMID: 34550751 PMCID: PMC8580012 DOI: 10.1128/aem.01601-21] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 09/14/2021] [Indexed: 11/20/2022] Open
Abstract
Soybean root rot caused by the oomycete Phytophthora sojae is a serious soilborne disease threatening soybean production in China. Bacillus velezensis FZB42 is a model strain for Gram-positive plant growth-promoting rhizobacteria and is able to produce multiple antibiotics. In this study, we demonstrated that B. velezensis FZB42 can efficiently antagonize P. sojae. The underlying mechanism for the inhibition was then investigated. The FZB42 mutants deficient in the synthesis of lipopeptides (bacillomycin D and fengycin), known to have antifungal activities, and polyketides (bacillaene, difficidin, and macrolactin), known to have antibacterial activities, were not impaired in their antagonism toward P. sojae; in contrast, mutants deficient in bacilysin biosynthesis completely lost their antagonistic activities toward P. sojae, indicating that bacilysin was responsible for the activity. Isolated pure bacilysin confirmed this inference. Bacilysin was previously shown to be antagonistic mainly toward prokaryotic bacteria rather than eukaryotes. Here, we found that bacilysin could severely damage the hyphal structures of P. sojae and lead to the loss of its intracellular contents. A device was invented allowing interactions between P. sojae and B. velezensis FZB42 on nutrient agar. In this manner, the effect of FZB42 on P. sojae was studied by transcriptomics. FZB42 significantly inhibited the expression of P. sojae genes related to growth, macromolecule biosynthesis, pathogenicity, and ribosomes. Among them, the genes for pectate lyase were the most significantly downregulated. Additionally, we showed that bacilysin effectively prevents soybean sprouts from being infected by P. sojae and could antagonize diverse Phytophthora species, such as Phytophthora palmivora, P. melonis, P. capsici, P. litchi, and, most importantly, P. infestans. IMPORTANCEPhytophthora spp. are widespread eukaryotic phytopathogens and often extremely harmful. Phytophthora can infect many types of plants important to agriculture and forestry and thus cause large economic losses. Perhaps due to inappropriate recognition of Phytophthora as a common pathogen in history, research on the biological control of Phytophthora is limited. This study shows that B. velezensis FZB42 can antagonize various Phytophthora species and prevent the infection of soybean seedlings by P. sojae. The antibiotic produced by FZB42, bacilysin, which was already known to have antibacterial effectiveness, is responsible for the inhibitory action against Phytophthora. We further showed that some Phytophthora genes and pathways may be targeted in future biocontrol studies. Therefore, our data provide a basis for the development of new tools for the prevention and control of root and stem rot in soybean and other plant diseases caused by Phytophthora.
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Affiliation(s)
- Xingshan Han
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Dongxia Shen
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Qin Xiong
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Beihua Bao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wenbo Zhang
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Tingting Dai
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Yinjuan Zhao
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, Greifswald, Germany
| | - Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
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14
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Keswani C, Singh SP, García-Estrada C, Mezaache-Aichour S, Glare TR, Borriss R, Rajput VD, Minkina TM, Ortiz A, Sansinenea E. Biosynthesis and beneficial effects of microbial gibberellins on crops for sustainable agriculture. J Appl Microbiol 2021; 132:1597-1615. [PMID: 34724298 DOI: 10.1111/jam.15348] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 01/08/2023]
Abstract
Soil microbes promote plant growth through several mechanisms such as secretion of chemical compounds including plant growth hormones. Among the phytohormones, auxins, ethylene, cytokinins, abscisic acid and gibberellins are the best understood compounds. Gibberellins were first isolated in 1935 from the fungus Gibberella fujikuroi and are synthesized by several soil microbes. The effect of gibberellins on plant growth and development has been studied, as has the biosynthesis pathways, enzymes, genes and their regulation. This review revisits the history of gibberellin research highlighting microbial gibberellins and their effects on plant health with an emphasis on the early discoveries and current advances that can find vital applications in agricultural practices.
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Affiliation(s)
- Chetan Keswani
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Satyendra P Singh
- Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, India
| | - Carlos García-Estrada
- Instituto de Biotecnología de León (INBIOTEC), Parque Científico de León, León, Spain.,Departamento de Ciencias Biomédicas, Universidad de León, León, Spain
| | | | - Travis R Glare
- Bio-Protection Research Centre, Lincoln University, Lincoln, New Zealand
| | - Rainer Borriss
- Institut für Biologie, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Tatiana M Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Aurelio Ortiz
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, Puebla, México
| | - Estibaliz Sansinenea
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, Puebla, México
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Wu X, Wu H, Wang R, Wang Z, Zhang Y, Gu Q, Farzand A, Yang X, Semenov M, Borriss R, Xie Y, Gao X. Genomic Features and Molecular Function of a Novel Stress-Tolerant Bacillus halotolerans Strain Isolated from an Extreme Environment. Biology (Basel) 2021; 10:biology10101030. [PMID: 34681129 PMCID: PMC8533444 DOI: 10.3390/biology10101030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/29/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary The Qinghai–Tibet Plateau is known as the “third pole of the world”. Due to the extreme geographical location, Qinghai–Tibet Plateau has unique ecosystems characterized by oxygen deficiency, low temperature, high salinity and alkalinity. We carried out the current study to explore the excellent extremophilic Bacillus strains via potential stress resistance as well as biocontrol properties in the Qinghai–Tibet Plateau. We found a Bacillus halotolerans strain with a promising ability to withstand harsh environments and which also exhibits an optimistic biocontrol activity against plant pathogens. We revealed the whole genome sequencing and its taxonomic position and elucidated its molecular functions that were responsible for enhancing stress tolerance as well as suppressing plant pathogens at the genetic level. Lastly, we identified this strain harbored the specific genes associated with stresses resistance, biocontrol function, and can be used as a biological agent in the agriculture field. Abstract Due to its topographical position and climatic conditions, the Qinghai–Tibet Plateau possesses abundant microorganism resources. The extremophilic strain KKD1 isolated from Hoh Xil possesses strong stress tolerance, enabling it to propagate under high salinity (13%) and alkalinity (pH 10.0) conditions. In addition, KKD1 exhibits promising biocontrol activity against plant pathogens. To further explore these traits at the genomic level, we performed whole-genome sequencing and analysis. The taxonomic identification according to the average nucleotide identity based on BLAST revealed that KKD1 belongs to Bacillus halotolerans. Genetic screening of KKD1 revealed that its stress resistance mechanism depends on osmotic equilibrium, membrane transportation, and the regulation of ion balance under salt and alkaline stress. The expression of genes involved in these pathways was analyzed using real-time quantitative PCR. The presence of different gene clusters encoding antimicrobial secondary metabolites indicated the various pathways by which KKD1 suppresses phytopathogenic growth. Moreover, the lipopeptides surfactin and fengycin were identified as being significant antifungal components of KKD1. Through comparative genomics analysis, we noticed that KKD1 harbored specific genes involved in stress resistance and biocontrol, thus providing a new perspective on the genomic features of the extremophilic Bacillus species.
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Affiliation(s)
- Xiaohui Wu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
- Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining 810016, China;
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Huijun Wu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
| | - Ruoyi Wang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
| | - Zhengqi Wang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
| | - Yaming Zhang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
| | - Qin Gu
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
| | - Ayaz Farzand
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
| | - Xue Yang
- Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining 810016, China;
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Mikhail Semenov
- Department of Soil Biology and Biochemistry, Dokuchaev Soil Science Institute, 119017 Moscow, Russia;
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, 10115 Berlin, Germany
- Nord Reet UG, Marienstr. 27a, 17489 Greifswald, Germany
- Correspondence: (R.B.); (Y.X.); (X.G.)
| | - Yongli Xie
- Department of Grassland Science, College of Agricultural and Husbandry, Qinghai University, Xining 810016, China;
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
- Correspondence: (R.B.); (Y.X.); (X.G.)
| | - Xuewen Gao
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; (X.W.); (H.W.); (R.W.); (Z.W.); (Y.Z.); (Q.G.); (A.F.)
- Correspondence: (R.B.); (Y.X.); (X.G.)
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16
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Cao X, Li Y, Fan J, Zhao Y, Borriss R, Fan B. Two Lysine Sites That Can Be Malonylated Are Important for LuxS Regulatory Roles in Bacillus velezensis. Microorganisms 2021; 9:microorganisms9061338. [PMID: 34205485 PMCID: PMC8233902 DOI: 10.3390/microorganisms9061338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/13/2021] [Accepted: 06/09/2021] [Indexed: 11/28/2022] Open
Abstract
S-ribosylhomocysteine lyase (LuxS) has been shown to regulate bacterial multicellular behaviors, typically biofilm formation. However, the mechanisms for the regulation are still mysterious. We previously identified a malonylation modification on K124 and K130 of the LuxS in the plant growth-promoting rhizobacterium B. velezensis (FZB42). In this work, we investigated the effects of the two malonylation sites on biofilm formation and other biological characteristics of FZB42. The results showed that the K124R mutation could severely impair biofilm formation, swarming, and sporulation but promote AI-2 production, suggesting inhibitory effects of high-level AI-2 on the features. All mutations (K124R, K124E, K130R, and K130E) suppressed FZB42 sporulation but increased its antibiotic production. The double mutations generally had a synergistic effect or at least equal to the effects of the single mutations. The mutation of K130 but not of K124 decreased the in vitro enzymatic activity of LuxS, corresponding to the conservation of K130 among various Bacillus LuxS proteins. From the results, we deduce that an alternative regulatory circuit may exist to compensate for the roles of LuxS upon its disruption. This study broadens the understanding of the biological function of LuxS in bacilli and underlines the importance of the two post-translational modification sites.
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Affiliation(s)
- Xianming Cao
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (X.C.); (Y.L.); (Y.Z.)
| | - Yulong Li
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (X.C.); (Y.L.); (Y.Z.)
| | - Jialu Fan
- College of Life Sciences, Nanjing Normal University, Nanjing 210046, China;
| | - Yinjuan Zhao
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (X.C.); (Y.L.); (Y.Z.)
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, 10115 Berlin, Germany;
- Nord Reet UG, Marienstr. 27a, 17489 Greifswald, Germany
| | - Ben Fan
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (X.C.); (Y.L.); (Y.Z.)
- Correspondence:
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17
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Niu B, Wang W, Yuan Z, Sederoff RR, Sederoff H, Chiang VL, Borriss R. Microbial Interactions Within Multiple-Strain Biological Control Agents Impact Soil-Borne Plant Disease. Front Microbiol 2020; 11:585404. [PMID: 33162962 PMCID: PMC7581727 DOI: 10.3389/fmicb.2020.585404] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/14/2020] [Indexed: 12/16/2022] Open
Abstract
Major losses of crop yield and quality caused by soil-borne plant diseases have long threatened the ecology and economy of agriculture and forestry. Biological control using beneficial microorganisms has become more popular for management of soil-borne pathogens as an environmentally friendly method for protecting plants. Two major barriers limiting the disease-suppressive functions of biocontrol microbes are inadequate colonization of hosts and inefficient inhibition of soil-borne pathogen growth, due to biotic and abiotic factors acting in complex rhizosphere environments. Use of a consortium of microbial strains with disease inhibitory activity may improve the biocontrol efficacy of the disease-inhibiting microbes. The mechanisms of biological control are not fully understood. In this review, we focus on bacterial and fungal biocontrol agents to summarize the current state of the use of single strain and multi-strain biological control consortia in the management of soil-borne diseases. We discuss potential mechanisms used by microbial components to improve the disease suppressing efficacy. We emphasize the interaction-related factors to be considered when constructing multiple-strain biological control consortia and propose a workflow for assembling them by applying a reductionist synthetic community approach.
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Affiliation(s)
- Ben Niu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Weixiong Wang
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Zhibo Yuan
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Ronald R. Sederoff
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, United States
| | - Heike Sederoff
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, United States
| | - Vincent L. Chiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, United States
| | - Rainer Borriss
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
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18
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Keswani C, Singh SP, Cueto L, García-Estrada C, Mezaache-Aichour S, Glare TR, Borriss R, Singh SP, Blázquez MA, Sansinenea E. Auxins of microbial origin and their use in agriculture. Appl Microbiol Biotechnol 2020; 104:8549-8565. [PMID: 32918584 DOI: 10.1007/s00253-020-10890-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/31/2020] [Accepted: 09/04/2020] [Indexed: 12/13/2022]
Abstract
To maintain the world population demand, a sustainable agriculture is needed. Since current global vision is more friendly with the environment, eco-friendly alternatives are desirable. In this sense, plant growth-promoting rhizobacteria could be the choice for the management of soil-borne diseases of crop plants. These rhizobacteria secrete chemical compounds which act as phytohormones. Indole-3-acetic acid (IAA) is the most common plant hormone of the auxin class which regulates various processes of plant growth. IAA compound, in which structure can be found a carboxylic acid attached through a methylene group to the C-3 position of an indole ring, is produced both by plants and microorganisms. Plant growth-promoting rhizobacteria and fungi secrete IAA to promote the plant growth. In this review, IAA production and mechanisms of action by bacteria and fungi along with the metabolic pathways evolved in the IAA secretion and commercial prospects are revised.Key points• Many microorganisms produce auxins which help the plant growth promotion.• These auxins improve the plant growth by several mechanisms.• The auxins are produced through different mechanisms.
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Affiliation(s)
- Chetan Keswani
- Department of Biochemistry, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - Satyendra Pratap Singh
- Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, India
| | - Laura Cueto
- Instituto de Biotecnología de León (INBIOTEC), Parque Científico de León, Av, Real, 1, 24006, León, Spain
| | - Carlos García-Estrada
- Instituto de Biotecnología de León (INBIOTEC), Parque Científico de León, Av, Real, 1, 24006, León, Spain.,Departamento de Ciencias Biomédicas, Universidad de León, Campus de Vegazana s/n, 24071, León, Spain
| | | | - Travis R Glare
- Bio-Protection Research Centre, Lincoln University, PO Box 85084, Lincoln, 7647, New Zealand
| | - Rainer Borriss
- Humboldt-Universität zu Berlin, Institut für Biologie, Berlin, Germany.,Nord Reet UG, Marienstr. 27a, 17489, Greifswald, Germany
| | - Surya Pratap Singh
- Department of Biochemistry, Faculty of Science, Banaras Hindu University, Varanasi, India
| | - Miguel Angel Blázquez
- Instituto de Biología Molecular y Celular de Plantas, CSIC-Universitat Politècnica de València, 46022, Valencia, Spain
| | - Estibaliz Sansinenea
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México.
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19
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Reva ON, Larisa SA, Mwakilili AD, Tibuhwa D, Lyantagaye S, Chan WY, Lutz S, Ahrens CH, Vater J, Borriss R. Complete genome sequence and epigenetic profile of Bacillus velezensis UCMB5140 used for plant and crop protection in comparison with other plant-associated Bacillus strains. Appl Microbiol Biotechnol 2020; 104:7643-7656. [PMID: 32651600 DOI: 10.1007/s00253-020-10767-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/11/2020] [Accepted: 07/02/2020] [Indexed: 01/29/2023]
Abstract
The application of biocontrol biopesticides based on plant growth-promoting rhizobacteria (PGPR), particularly members of the genus Bacillus, is considered a promising perspective to make agricultural practices sustainable and ecologically safe. Recent advances in genome sequencing by third-generation sequencing technologies, e.g., Pacific Biosciences' Single Molecule Real-Time (PacBio SMRT) platform, have allowed researchers to gain deeper insights into the molecular and genetic mechanisms of PGPR activities, and to compare whole genome sequences and global patterns of epigenetic modifications. In the current work, this approach was used to sequence and compare four Bacillus strains that exhibited various PGPR activities including the strain UCMB5140, which is used in the commercial biopesticide Phytosubtil. Whole genome comparison and phylogenomic inference assigned the strain UCMB5140 to the species Bacillus velezensis. Strong biocontrol activities of this strain were confirmed in several bioassays. Several factors that affect the evolution of active PGPR B. velezensis strains were identified: (1) horizontal acquisition of novel non-ribosomal peptide synthetases (NRPS) and adhesion genes; (2) rearrangements of functional modules of NRPS genes leading to strain specific combinations of their encoded products; (3) gain and loss of methyltransferases that can cause global alterations in DNA methylation patterns, which eventually may affect gene expression and regulate transcription. Notably, we identified a horizontally transferred NRPS operon encoding an uncharacterized polypeptide antibiotic in B. velezensis UCMB5140. Other horizontally acquired genes comprised a possible adhesin and a methyltransferase, which may explain the strain-specific methylation pattern of the chromosomal DNA of UCMB5140. KEY POINTS: • Whole genome sequence of the active PGPR Bacillus velezensis UCMB5140. • Identification of genetic determinants responsible for PGPR activities. • Role of methyltransferases and epigenetic mechanisms in evolution of bacteria.
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Affiliation(s)
- Oleg N Reva
- Centre for Bioinformatics and Computational Biology, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Hillcrest, Lynnwood Rd., Pretoria, South Africa.
| | - Safronova A Larisa
- Innovation and Technology Transfer Laboratory, DK Zabolotny Institute of Microbiology and Virology, 154 Zabolotnogo Str, Kyiv, 03143, Ukraine
| | - Aneth D Mwakilili
- Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania.,Plant Protection Department, Swedish University of Agricultural Sciences (SLU), Alnarp, Sweden
| | - Donatha Tibuhwa
- Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Sylvester Lyantagaye
- Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Wai Yin Chan
- Biotechnology Platform (BTP), Agricultural Research Council, Onderstepoort Veterinary Research Campus, Old Soutpan Rd, Onderstepoort, South Africa.,Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.,Forestry and Agricultural Biotechnology Institute (FABI), DST-NRF Centre of Excellence in Tree Health Biotechnology (CTHB), University of Pretoria, Pretoria, South Africa
| | - Stefanie Lutz
- Agroscope, Molecular Diagnostics, Genomics and Bioinformatics & SIB Swiss Institute of Bioinformatics, Müller-Thurgau-Str. 29, 8820, Wädenswil, Switzerland
| | - Christian H Ahrens
- Agroscope, Molecular Diagnostics, Genomics and Bioinformatics & SIB Swiss Institute of Bioinformatics, Müller-Thurgau-Str. 29, 8820, Wädenswil, Switzerland
| | | | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany
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20
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Wu L, Li X, Ma L, Blom J, Wu H, Gu Q, Borriss R, Gao X. The "pseudo-pathogenic" effect of plant growth-promoting Bacilli on starchy plant storage organs is due to their α-amylase activity which is stimulating endogenous opportunistic pathogens. Appl Microbiol Biotechnol 2020; 104:2701-2714. [PMID: 32002598 DOI: 10.1007/s00253-020-10367-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/02/2020] [Accepted: 01/09/2020] [Indexed: 11/29/2022]
Abstract
Many representatives of the Bacillus subtilis species complex are known as plant growth-promoting rhizobacteria (PGPR) and are widely used in agriculture as biofertilizers and biocontrol agents. Two bacterial strains, "Korea isolate" and ZL918, taxonomically classified as being Bacillus amyloliquefaciens, isolated from disease-damaged plant organs, were alleged to cause bacterial rot in starchy storage plant organs. The aim of this study was to elucidate whether these findings have consequences for the general use of beneficial Bacilli in agriculture. Whole genome sequencing revealed that the pathogenic ZL918 was a representative of Bacillus velezensis. B. velezensis FZB42 and other representatives of the B. subtilis species complex caused the same symptoms of bacterial rot only when injected inside of potato tubers and onion bulbs, but not when inoculated onto the surface of the storage organs. It seemed that the pathogenic effect was due to starch hydrolyzing activity that likely stimulates propagation of endophytic bacteria inside of starchy tissues. After removing the inherent microbiota via Co60 γ-ray irradiation, the storage organs inoculated by either FZB42 or purified α-amylase did not develop rot symptoms. Two opportunistic pathogens, Pantoea ananatis and Pantoea agglomerans, isolated from the rotted area, were shown to cause bacterial rot in x-ray treated potato tuber and onion starchy tissues when the proteobacteria were applied in high concentration. This suggests that opportunistic pathogenic bacteria residing inside of the starchy storage organ are the causal agents of bacterial soft rot disease in potato tubers and other starchy plant storage organs.
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Affiliation(s)
- Liming Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Xi Li
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Liumin Ma
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig Universität Giessen, Giessen, Germany
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Qin Gu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität, Berlin, Germany. .,Nord Reet UG, Greifswald, Germany.
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China.
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21
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Fan B, Wang C, Ding X, Zhu B, Song X, Borriss R. AmyloWiki: an integrated database for Bacillus velezensis FZB42, the model strain for plant growth-promoting Bacilli. Database (Oxford) 2020; 2019:5520604. [PMID: 31219564 PMCID: PMC6585148 DOI: 10.1093/database/baz071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/27/2019] [Accepted: 05/07/2019] [Indexed: 12/23/2022]
Abstract
Since its isolation 20 years ago, many studies have been devoted to Bacillus velezensis FZB42 (former name Bacillus amyloliquefaciens subsp. plantarum FZB42), which has been gradually accepted as a model organism for Gram-positive rhizobacteria. FZB42 is different from another widely studied bacterial strain, Bacillus subtilis 168, in its many features that are closely associated with plants. FZB42 represents a large group of Bacillus isolates that are beneficial to plants and of great importance in agriculture. In this work a database for FZB42 named 'AmyloWiki' is built to integrate all information of FZB42 available to date. The information includes the genomic, transcriptomic, proteomic, post-translational data as well as FZB42 unique genes, protein regulators, mutant availability, publications and etc. The website is built up with PHP and MySQL with a function of keyword searching, browsing, data-downloading and other functions.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Cong Wang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Xiaolei Ding
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Bingyao Zhu
- Department of General Microbiology, Institute of Microbiology and Genetics, Georg-August University Göttingen, Grisebachstr. 8, D-37077 Göttingen, Germany
| | - Xiaofeng Song
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, 10115 Berlin, Germany, and Nord Reet UG, Marienstr. 27a, 17489 Greifswald, Germany
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22
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Reva ON, Swanevelder DZH, Mwita LA, Mwakilili AD, Muzondiwa D, Joubert M, Chan WY, Lutz S, Ahrens CH, Avdeeva LV, Kharkhota MA, Tibuhwa D, Lyantagaye S, Vater J, Borriss R, Meijer J. Genetic, Epigenetic and Phenotypic Diversity of Four Bacillus velezensis Strains Used for Plant Protection or as Probiotics. Front Microbiol 2019; 10:2610. [PMID: 31803155 PMCID: PMC6873887 DOI: 10.3389/fmicb.2019.02610] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/28/2019] [Indexed: 12/11/2022] Open
Abstract
Bacillus velezensis strains are applied as ecologically safe biopesticides, plant growth promoting rhizobacteria (PGPR), and in veterinary probiotics. They are abundant in various environments including soil, plants, marine habitats, the intestinal micro-flora, etc. The mechanisms underlying this adaptive plasticity and bioactivity are not well understood, nor is it clear why several strains outperform other same species isolates by their bioactivities. The main objective of this work was to demonstrate versatility of bioactivities and lifestyle strategies of the selected B. velezensis strains suitable to serve as model organisms in future studies. Here, we performed a comparative study of newly sequenced genomes of four B. velezensis isolates with distinct phenotypes and isolation origin, which were assessed by RNA sequencing under the effect of root exudate stimuli and profiled by epigenetic modifications of chromosomal DNA. Among the selected strains, UCMB5044 is an oligotrophic PGPR strain adapted to nutrient poor desert soils. UCMB5113 and At1 are endophytes that colonize plants and require nutrient rich media. In contrast, the probiotic strain, UCMB5007, is a copiotroph, which shows no propensity to colonize plants. PacBio and Illumina sequencing approaches were used to generate complete genome assemblies, tracing epigenetic modifications, and determine gene expression profiles. All sequence data was deposited at NCBI. The strains, UCMB5113 and At1, show 99% sequence identity and similar phenotypes despite being isolated from geographically distant regions. UCMB5007 and UCMB5044 represent another group of organisms with almost identical genomes but dissimilar phenotypes and plant colonization propensity. The two plant associated strains, UCMB5044 and UCMB5113, share 398 genes putatively associated with root colonization, which are activated by exposure to maize root exudates. In contrast, UCMB5007 did not respond to root exudate stimuli. It was hypothesized that alterations in the global methylation pattern and some other epigenetic modifications enable adaptation of strains to different habitats and therefore may be of importance in terms of the biotechnological applicability of these bacteria. Contrary, the ability to grow on root exudates as a sole source of nutrients or a strong antagonism against phytopathogens showed by the strains in vitro cannot be considered as good predictors of PGPR activities.
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Affiliation(s)
- Oleg N Reva
- Centre for Bioinformatics and Computational Biology, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | | | - Liberata A Mwita
- Centre for Bioinformatics and Computational Biology, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.,Department of Pharmaceutical Microbiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Aneth David Mwakilili
- Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania.,Department of Plant Protection, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Dillon Muzondiwa
- Centre for Bioinformatics and Computational Biology, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - Monique Joubert
- Centre for Bioinformatics and Computational Biology, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
| | - Wai Yin Chan
- Biotechnology Platform, Agricultural Research Council, Pretoria, South Africa.,Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.,Forestry and Agricultural Biotechnology Institute, DST-NRF Centre of Excellence in Tree Health Biotechnology, University of Pretoria, Pretoria, South Africa
| | - Stefanie Lutz
- Agroscope, Molecular Diagnostics, Genomics and Bioinformatics and SIB Swiss Institute of Bioinformatics, Wädenswil, Switzerland
| | - Christian H Ahrens
- Agroscope, Molecular Diagnostics, Genomics and Bioinformatics and SIB Swiss Institute of Bioinformatics, Wädenswil, Switzerland
| | - Lylia V Avdeeva
- Department of Antibiotics, D.K. Zabolotny Institute of Microbiology and Virology, Kyiv, Ukraine
| | - Maksim A Kharkhota
- Department of Antibiotics, D.K. Zabolotny Institute of Microbiology and Virology, Kyiv, Ukraine
| | - Donatha Tibuhwa
- Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Sylvester Lyantagaye
- Department of Molecular Biology and Biotechnology, University of Dar es Salaam, Dar es Salaam, Tanzania
| | | | - Rainer Borriss
- Institut für Biologie, Humboldt Universität zu Berlin, Berlin, Germany
| | - Johan Meijer
- Department of Plant Biology, Linnéan Center for Plant Biology, Uppsala Biocenter, Swedish University of Agricultural Sciences, Uppsala, Sweden
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23
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Huang Z, Wu L, Li X, Ma L, Borriss R, Gao X. Zn(II) suppresses biofilm formation in Bacillus amyloliquefaciens by inactivation of the Mn(II) uptake. Environ Microbiol 2019; 22:1547-1558. [PMID: 31715659 DOI: 10.1111/1462-2920.14859] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 11/29/2022]
Abstract
Biofilms are architecturally complex communities of microbial cells held together by a self-produced extracellular matrix. Considerable research has focused on the environmental signals that trigger or inhibit biofilm formation by affecting cellular signalling pathways; however, response to soil cues in plant-associated Bacillus has remained largely unaddressed. Therefore, we aimed to investigate the effect of Zn(II) ions in biofilm formation of Bacillus amyloliquefaciens FZB42. We demonstrated that the biofilm formation of B. amyloliquefaciens FZB42 was abolished by Zn(II) at non-deleterious concentrations. Moreover, Zn(II) blocked matrix exopolysaccharide and TasA accumulations. Furthermore, the presence of Zn(II) suppressed expression of the response regulator Spo0F but not of sensor histidine kinases KinA-D. Suppression of phosphorelay by excess Zn interferes with sinI induction under biofilm-inducing conditions, leading to repression of transcription of operons epsA-O and tapA-sigW-tasA. Addition of Zn(II) decreased the intracellular Mn(II) level by competing for binding to the solute-binding protein MntA during Mn(II) uptake. These results suggest that the metal ion Zn(II) has a negative effect on biofilm formation in the plant growth promoting and biocontrol bacterium B. amyloliquefaciens FZB42.
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Affiliation(s)
- Ziyang Huang
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, 210095, China
| | - Liming Wu
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, 210095, China
| | - Xi Li
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, 210095, China
| | - Liumin Ma
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, 210095, China
| | - Rainer Borriss
- Nord Reet UG, Greifswald, Germany.,Fachgebiet Phytomedizin, Institut für Agrar- und Gartenbauwissenschaften, Humboldt Universität, Berlin, Germany
| | - Xuewen Gao
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, 210095, China
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24
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Keswani C, Prakash O, Bharti N, Vílchez JI, Sansinenea E, Lally RD, Borriss R, Singh SP, Gupta VK, Fraceto LF, de Lima R, Singh HB. Re-addressing the biosafety issues of plant growth promoting rhizobacteria. Sci Total Environ 2019; 690:841-852. [PMID: 31302549 DOI: 10.1016/j.scitotenv.2019.07.046] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 05/21/2023]
Abstract
To promote agronomic sustainability, extensive research is being carried out globally, investigating biofertilizer development. Recently, it has been realized that some microorganisms used as biofertilizers behave as opportunistic pathogens and belong to the biosafety level 2 (BSL-2) classification. This poses serious risk to the environmental and human health. Evidence presented in various scientific forums is increasingly favoring the merits of using BSL-2 microorganisms as biofertilizers. In this review, we emphasize that partial characterization based on traditional microbiological approaches and small subunit rRNA gene sequences/conserved regions are insufficient for the characterization of biofertilizer strains. It is advised herein, that research and industrial laboratories developing biofertilizers for commercialization or environmental release must characterize microorganisms of interest using a multilateral polyphasic approach of microbial systematics. This will determine their risk group and biosafety characteristics before proceeding with formulation development and environmental application. It has also been suggested that microorganisms belonging to risk-group-1 and BSL-1 category should be used for formulation development and for field scale applications. While, BSL-2 microorganisms should be restricted for research using containment practices compliant with strict regulations.
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Affiliation(s)
- Chetan Keswani
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Om Prakash
- National Centre for Microbial Resource, National Centre for Cell Science, Pune 411007, India.
| | - Nidhi Bharti
- Department of Botany, Savitribai Phule Pune University, Pune 411007, India.
| | - Juan I Vílchez
- Department of Plant Growth Promotion Rhizobacteria, Plant Stress Centre for Biology (PSC), Chinese Academy of Sciences (CAS), Shanghai, China.
| | - Estibaliz Sansinenea
- Facultad de Ciencias Químicas, Benemerita Universidad Autonoma de Puebla, Puebla, Pue, Mexico.
| | - Richard D Lally
- Research Department, Alltech, 3031 Catnip Hill Road, Nicholasville, KY 40356, USA.
| | - Rainer Borriss
- Nord Reet UG Greifswald, Germany and Humboldt University, Berlin, Germany.
| | - Surya P Singh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Vijai K Gupta
- Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia.
| | - Leonardo F Fraceto
- São Paulo State University (UNESP), Institute of Science and Technology, Avenida Três de Março, 511, Alto da Boa Vista, Sorocaba, São Paulo, Brazil.
| | - Renata de Lima
- LABiToN - LaboratóriodeAvaliaçãodeBioatividadeeToxicologiade Nanomateriais, University of Sorocaba, Rodovia Raposo Tavares, Sorocaba, São Paulo, Brazil.
| | - Harikesh B Singh
- Department of Mycology and Plant Pathology, Institute of Agriculture Sciences, Banaras Hindu University, Varanasi 221005, India.
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Wu H, Gu Q, Xie Y, Lou Z, Xue P, Fang L, Yu C, Jia D, Huang G, Zhu B, Schneider A, Blom J, Lasch P, Borriss R, Gao X. Cold-adapted Bacilli isolated from the Qinghai-Tibetan Plateau are able to promote plant growth in extreme environments. Environ Microbiol 2019; 21:3505-3526. [PMID: 31233661 DOI: 10.1111/1462-2920.14722] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 12/13/2022]
Abstract
Nearly 1400 Bacillus strains growing in the plant rhizosphere were sampled from different sites on the Qinghai-Tibetan Plateau. Forty-five of the isolates, selected due to their biocontrol activity, were genome-sequenced and their taxonomic identification revealed that they were representatives of the Bacillus subtilis species complex (20) and the Bacillus cereus group (9). Majority of the remaining strains were found closely related to Bacillus pumilus, but their average nucleotide identity based on BLAST and electronic DNA/DNA hybridization values excluded closer taxonomic identification. A total of 45 different gene clusters involved in synthesis of secondary metabolites were detected by mining the genomes of the 45 selected strains. Except eight mesophilic strains, the 37 remaining strains were found either cold-adapted or psychrophilic, able to propagate at 10°C and below (Bacillus wiedmannii NMSL88 and Bacillus sp. RJGP41). Pot experiments performed at 10°C with winter wheat seedlings revealed that cold-adapted representatives of B. pumilus, B. safensis and B. atrophaeus promoted growth of the seedlings under cold conditions, suggesting that these bacilli isolated from a cold environment are promising candidates for developing of bioformulations useful for application in sustainable agriculture under environmental conditions unfavourable for the mesophilic bacteria presently in use.
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Affiliation(s)
- Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Qin Gu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Yongli Xie
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Zhiying Lou
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Pengqi Xue
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Liu Fang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Chenjie Yu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Dandan Jia
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Guochao Huang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Bichun Zhu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Andy Schneider
- Proteomics and Spectroscopy Unit (ZBS6) at the Centre for Biological Threats and Special Pathogens, Robert Koch-Institute, Berlin, Germany
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig Universität Giessen, Giessen, Germany
| | - Peter Lasch
- Proteomics and Spectroscopy Unit (ZBS6) at the Centre for Biological Threats and Special Pathogens, Robert Koch-Institute, Berlin, Germany
| | - Rainer Borriss
- Nordreet UG, Greifswald, Germany.,Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
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26
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Fan B, Wang C, Song X, Ding X, Wu L, Wu H, Gao X, Borriss R. Corrigendum: Bacillus velezensis FZB42 in 2018: The Gram-Positive Model Strain for Plant Growth Promotion and Biocontrol. Front Microbiol 2019; 10:1279. [PMID: 31244802 PMCID: PMC6580152 DOI: 10.3389/fmicb.2019.01279] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 05/22/2019] [Indexed: 11/28/2022] Open
Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Cong Wang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Xiaofeng Song
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Xiaolei Ding
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Liming Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany.,Nord Reet UG, Greifswald, Germany
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27
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Wu L, Li X, Ma L, Borriss R, Wu Z, Gao X. Acetoin and 2,3-butanediol from Bacillus amyloliquefaciens induce stomatal closure in Arabidopsis thaliana and Nicotiana benthamiana. J Exp Bot 2018; 69:5625-5635. [PMID: 30295868 DOI: 10.1093/jxb/ery326] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 09/27/2018] [Indexed: 05/21/2023]
Abstract
Plants live in close association with large communities of microbes, some of which are foliar pathogens that invade tissues, primarily via stomata on the leaf surface. Stomata are considered part of an integral, innate immunity system capable of efficiently preventing pathogens from entering the host plant. Although Bacillus, a typical plant growth-promoting rhizobacterium, is known to induce stomatal closure, the substances participating in this closure and the mechanism involved in its regulation remain poorly understood. Here, we screened a mutant library and conducted site-specific mutagenesis experiments in order to identify such substances. We found that acetoin and 2,3-butanediol from B. amyloliquefaciens FZB42 induced stomatal closure in Arabidopsis thaliana and Nicotiana benthamiana. These two components could function either via root absorption or volatilization to restrict stomatal apertures, but root absorption was more efficient. Both substances invoked the salicylic acid and abscisic acid signaling pathways to close the stomata and stimulated accumulation of hydrogen peroxide and nitric oxide. The results present comprehensive evidence of how soil rhizobacteria may affect plant stomata, in a way that reinforces the evolved mutualism between the two groups of organisms, and provide potential alternative avenues of research towards reducing the incidence of disease in crops.
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Affiliation(s)
- Liming Wu
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, China
| | - Xi Li
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, China
| | - Liumin Ma
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, China
| | - Rainer Borriss
- Nord Reet UG, Greifswald, Germany
- Fachgebiet Phytomedizin, Institut für Agrar- und Gartenbauwissenschaften, Humboldt Universität, Berlin, Germany
| | - Zhen Wu
- College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Xuewen Gao
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Education, Nanjing, China
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28
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Fan B, Wang C, Song X, Ding X, Wu L, Wu H, Gao X, Borriss R. Bacillus velezensis FZB42 in 2018: The Gram-Positive Model Strain for Plant Growth Promotion and Biocontrol. Front Microbiol 2018; 9:2491. [PMID: 30386322 PMCID: PMC6198173 DOI: 10.3389/fmicb.2018.02491] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/28/2018] [Indexed: 12/31/2022] Open
Abstract
Bacillus velezensis FZB42, the model strain for Gram-positive plant-growth-promoting and biocontrol rhizobacteria, has been isolated in 1998 and sequenced in 2007. In order to celebrate these anniversaries, we summarize here the recent knowledge about FZB42. In last 20 years, more than 140 articles devoted to FZB42 have been published. At first, research was mainly focused on antimicrobial compounds, apparently responsible for biocontrol effects against plant pathogens, recent research is increasingly directed to expression of genes involved in bacteria–plant interaction, regulatory small RNAs (sRNAs), and on modification of enzymes involved in synthesis of antimicrobial compounds by processes such as acetylation and malonylation. Till now, 13 gene clusters involved in non-ribosomal and ribosomal synthesis of secondary metabolites with putative antimicrobial action have been identified within the genome of FZB42. These gene clusters cover around 10% of the whole genome. Antimicrobial compounds suppress not only growth of plant pathogenic bacteria and fungi, but could also stimulate induced systemic resistance (ISR) in plants. It has been found that besides secondary metabolites also volatile organic compounds are involved in the biocontrol effect exerted by FZB42 under biotic (plant pathogens) and abiotic stress conditions. In order to facilitate easy access to the genomic data, we have established an integrating data bank ‘AmyloWiki’ containing accumulated information about the genes present in FZB42, available mutant strains, and other aspects of FZB42 research, which is structured similar as the famous SubtiWiki data bank.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Cong Wang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Xiaofeng Song
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Xiaolei Ding
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing, China
| | - Liming Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, China
| | - Rainer Borriss
- Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany.,Nord Reet UG, Greifswald, Germany
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29
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Wu L, Huang Z, Li X, Ma L, Gu Q, Wu H, Liu J, Borriss R, Wu Z, Gao X. Stomatal Closure and SA-, JA/ET-Signaling Pathways Are Essential for Bacillus amyloliquefaciens FZB42 to Restrict Leaf Disease Caused by Phytophthora nicotianae in Nicotiana benthamiana. Front Microbiol 2018; 9:847. [PMID: 29755447 PMCID: PMC5934478 DOI: 10.3389/fmicb.2018.00847] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 04/12/2018] [Indexed: 12/04/2022] Open
Abstract
Bacillus amyloliquefaciens FZB42 is a plant growth-promoting rhizobacterium that induces resistance to a broad spectrum of pathogens. This study analyzed the mechanism by which FZB42 restricts leaf disease caused by Phytophthora nicotianae in Nicotiana benthamiana. The oomycete foliar pathogen P. nicotianae is able to reopen stomata which had been closed by the plant innate immune response to initiate penetration and infection. Here, we showed that root colonization by B. amyloliquefaciens FZB42 restricted pathogen-mediated stomatal reopening in N. benthamiana. Abscisic acid (ABA) and salicylic acid (SA)-regulated pathways mediated FZB42-induced stomatal closure after pathogen infection. Moreover, the defense-related genes PR-1a, LOX, and ERF1, involved in the SA and jasmonic acid (JA)/ethylene (ET) signaling pathways, respectively, were overexpressed, and levels of the hormones SA, JA, and ET increased in the leaves of B. amyloliquefaciens FZB42-treated wild type plants. Disruption of one of these three pathways in N. benthamiana plants increased susceptibility to the pathogen. These suggest that SA- and JA/ET-dependent signaling pathways were important in plant defenses against the pathogen. Our data thus explain a biocontrol mechanism of soil rhizobacteria in a plant.
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Affiliation(s)
- Liming Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China.,Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Ziyang Huang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Xi Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China.,Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Liumin Ma
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China.,Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Qin Gu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China.,Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Huijun Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China.,Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Jia Liu
- Chongqing Key Laboratory of Economic Plant Biotechnology, College of Forestry & Life Science, Chongqing University of Arts and Sciences, Yongchuan, China
| | - Rainer Borriss
- Nord Reet UG, Greifswald, Germany.,Fachgebiet Phytomedizin, Institut für Agrar-und Gartenbauwissenschaften, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Zhen Wu
- College of Horticulture, Nanjing Agricultural University, Nanjing, China
| | - Xuewen Gao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China.,Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
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30
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Vater J, Herfort S, Doellinger J, Weydmann M, Borriss R, Lasch P. Genome Mining of the Lipopeptide Biosynthesis of Paenibacillus polymyxa
E681 in Combination with Mass Spectrometry: Discovery of the Lipoheptapeptide Paenilipoheptin. Chembiochem 2018; 19:744-753. [DOI: 10.1002/cbic.201700615] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Joachim Vater
- Robert Koch-Institut Berlin; ZBS6 Proteomics and Spectroscopy; Seestrasse 10 13353 Berlin Germany
| | - Stefanie Herfort
- Robert Koch-Institut Berlin; ZBS6 Proteomics and Spectroscopy; Seestrasse 10 13353 Berlin Germany
| | - Joerg Doellinger
- Robert Koch-Institut Berlin; ZBS6 Proteomics and Spectroscopy; Seestrasse 10 13353 Berlin Germany
| | - Max Weydmann
- Robert Koch-Institut Berlin; ZBS6 Proteomics and Spectroscopy; Seestrasse 10 13353 Berlin Germany
| | - Rainer Borriss
- Humboldt Universität Berlin; Fachgebiet Phytomedizin; Lentzeallee 55-57 14195 Berlin Germany
- NordReet UG; Marienstrasse 27a 17489 Greifswald Germany
| | - Peter Lasch
- Robert Koch-Institut Berlin; ZBS6 Proteomics and Spectroscopy; Seestrasse 10 13353 Berlin Germany
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31
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Borriss R, Danchin A, Harwood CR, Médigue C, Rocha EP, Sekowska A, Vallenet D. Bacillus subtilis, the model Gram-positive bacterium: 20 years of annotation refinement. Microb Biotechnol 2018; 11:3-17. [PMID: 29280348 PMCID: PMC5743806 DOI: 10.1111/1751-7915.13043] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Genome annotation is, nowadays, performed via automatic pipelines that cannot discriminate between right and wrong annotations. Given their importance in increasing the accuracy of the genome annotations of other organisms, it is critical that the annotations of model organisms reflect the current annotation gold standard. The genome of Bacillus subtilis strain 168 was sequenced twenty years ago. Using a combination of inductive, deductive and abductive reasoning, we present a unique, manually curated annotation, essentially based on experimental data. This reveals how this bacterium lives in a plant niche, while carrying a paleome operating system common to Firmicutes and Tenericutes. Dozens of new genomic objects and an extensive literature survey have been included for the sequence available at the INSDC (AccNum AL009126.3). We also propose an extension to Demerec's nomenclature rules that will help investigators connect to this type of curated annotation via the use of common gene names.
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Affiliation(s)
- Rainer Borriss
- Department of PhytomedicineHumboldt‐Universität zu BerlinLentzeallee 55‐5714195BerlinGermany
| | - Antoine Danchin
- Hôpital de la Pitié‐SalpêtrièreInstitute of Cardiometabolism and Nutrition47 Boulevard de l'Hôpital75013ParisFrance
- School of Biomedical SciencesLi Kashing Faculty of MedicineUniversity of Hong Kong21 Sassoon RoadPok Fu LamSAR Hong KongChina
| | - Colin R. Harwood
- The Centre for Bacterial Cell BiologyNewcastle UniversityBaddiley‐Clark BuildingRichardson RoadNewcastle upon TyneNE2 4AXUK
| | - Claudine Médigue
- CEA DRF Genoscope LABGeMCNRS, UMR8030 Génomique MétaboliqueUniversité d'Evry Val d'EssonneUniversité Paris‐SaclayF‐91057EvryFrance
| | - Eduardo P.C. Rocha
- Microbial Evolutionary Genomics UnitInstitut Pasteur28 rue du Docteur Roux75724Paris Cedex 15France
| | - Agnieszka Sekowska
- Hôpital de la Pitié‐SalpêtrièreInstitute of Cardiometabolism and Nutrition47 Boulevard de l'Hôpital75013ParisFrance
| | - David Vallenet
- CEA DRF Genoscope LABGeMCNRS, UMR8030 Génomique MétaboliqueUniversité d'Evry Val d'EssonneUniversité Paris‐SaclayF‐91057EvryFrance
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32
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Gu Q, Yang Y, Yuan Q, Shi G, Wu L, Lou Z, Huo R, Wu H, Borriss R, Gao X. Bacillomycin D Produced by Bacillus amyloliquefaciens Is Involved in the Antagonistic Interaction with the Plant-Pathogenic Fungus Fusarium graminearum. Appl Environ Microbiol 2017; 83:e01075-17. [PMID: 28733288 PMCID: PMC5601353 DOI: 10.1128/aem.01075-17] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/17/2017] [Indexed: 11/20/2022] Open
Abstract
Fusarium graminearum (teleomorph: Ascomycota, Hypocreales, Gibberella, Gibberella zeae) is a destructive fungal pathogen that threatens the production and quality of wheat and barley worldwide. Controlling this toxin-producing pathogen is a significant challenge. In the present study, the commercially available strain Bacillus amyloliquefaciens (Bacteria, Firmicutes, Bacillales, Bacillus) FZB42 showed strong activity against F. graminearum The lipopeptide bacillomycin D, produced by FZB42, was shown to contribute to the antifungal activity. Purified bacillomycin D showed strong activity against F. graminearum, and its 50% effective concentration was determined to be approximately 30 μg/ml. Analyses using scanning and transmission electron microscopy revealed that bacillomycin D caused morphological changes in the plasma membranes and cell walls of F. graminearum hyphae and conidia. Fluorescence microscopy combined with different dyes showed that bacillomycin D induced the accumulation of reactive oxygen species and caused cell death in F. graminearum hyphae and conidia. F. graminearum secondary metabolism also responded to bacillomycin D challenge, by increasing the production of deoxynivalenol. Biological control experiments demonstrated that bacillomycin D exerted good control of F. graminearum on corn silks, wheat seedlings, and wheat heads. In response to bacillomycin D, F. graminearum genes involved in scavenging reactive oxygen species were downregulated, whereas genes involved in the synthesis of deoxynivalenol were upregulated. Phosphorylation of MGV1 and HOG1, the mitogen-activated protein kinases of F. graminearum, was increased in response to bacillomycin D. Taken together, these findings reveal the mechanism of the antifungal action of bacillomycin D.IMPORTANCE Biological control of plant disease caused by Fusarium graminearum is desirable. Bacillus amyloliquefaciens FZB42 is a representative of the biocontrol bacterial strains. In this work, the lipopeptide bacillomycin D, produced by FZB42, showed strong fungicidal activity against F. graminearum Bacillomycin D caused morphological changes in the plasma membrane and cell wall of F. graminearum, induced accumulation of reactive oxygen species, and ultimately caused cell death in F. graminearum Interestingly, when F. graminearum was challenged with bacillomycin D, the deoxynivalenol production, gene expression, mitogen-activated protein kinase phosphorylation, and pathogenicity of F. graminearum were significantly altered. These findings clarified the mechanisms of the activity of bacillomycin D against F. graminearum and highlighted the potential of B. amyloliquefaciens FZB42 as a biocontrol agent against F. graminearum.
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Affiliation(s)
- Qin Gu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Yang Yang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Qiming Yuan
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Guangming Shi
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Liming Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Zhiying Lou
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Rong Huo
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
| | - Rainer Borriss
- Institut für Biologie, Humboldt-Universität Berlin, Berlin, Germany
| | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, People's Republic of China
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33
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Qiao J, Yu X, Liang X, Liu Y, Borriss R, Liu Y. Addition of plant-growth-promoting Bacillus subtilis PTS-394 on tomato rhizosphere has no durable impact on composition of root microbiome. BMC Microbiol 2017; 17:131. [PMID: 28583081 PMCID: PMC5460418 DOI: 10.1186/s12866-017-1039-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 05/25/2017] [Indexed: 12/23/2022] Open
Abstract
Background Representatives of the genus Bacillus are increasingly used in agriculture to promote plant growth and to protect against plant pathogens. Unfortunately, hitherto the impact of Bacillus inoculants on the indigenous plant microbiota has been investigated exclusively for the species Bacillus amyloliquefaciens and was limited to prokaryotes, whilst eukaryotic member of this community, e.g. fungi, were not considered. Results The root-colonizing Bacillus subtilis PTS-394 supported growth of tomato plants and suppressed soil-borne diseases. Roche 454 pyrosequencing revealed that PTS-394 has only a transient impact on the microbiota community of the tomato rhizosphere. The impact on eukaryota could last up to 14 days, while that on bacterial communities lasted for 3 days only. Conclusions Ecological adaptation and microbial community-preserving capacity are important criteria when assessing suitability of bio-inoculants for commercial development. As shown here, B. subtilis PTS-394 is acting as an environmentally compatible plant protective agent without permanent effects on rhizosphere microbial community. Electronic supplementary material The online version of this article (doi:10.1186/s12866-017-1039-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Junqing Qiao
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu province, 210014, China
| | - Xiang Yu
- Suqian institute, Jiangsu Academy of Agricultural Sciences, Suqian, Jiangsu province, 223831, China
| | - Xuejie Liang
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu province, 210014, China
| | - Yongfeng Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu province, 210014, China
| | - Rainer Borriss
- Institut für Agrarwissenschaften/Phytomedizin, Humboldt Universität zu Berlin, 14195, Berlin, Germany.,Nord Reet UG, 17489, Greifswald, Germany
| | - Youzhou Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu province, 210014, China.
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Fan B, Blom J, Klenk HP, Borriss R. Bacillus amyloliquefaciens, Bacillus velezensis, and Bacillus siamensis Form an "Operational Group B. amyloliquefaciens" within the B. subtilis Species Complex. Front Microbiol 2017; 8:22. [PMID: 28163698 PMCID: PMC5247444 DOI: 10.3389/fmicb.2017.00022] [Citation(s) in RCA: 187] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/04/2017] [Indexed: 11/13/2022] Open
Abstract
The plant growth promoting model bacterium FZB42T was proposed as the type strain of Bacillus amyloliquefaciens subsp. plantarum (Borriss et al., 2011), but has been recently recognized as being synonymous to Bacillus velezensis due to phylogenomic analysis (Dunlap C. et al., 2016). However, until now, majority of publications consider plant-associated close relatives of FZB42 still as "B. amyloliquefaciens." Here, we reinvestigated the taxonomic status of FZB42 and related strains in its context to the free-living soil bacterium DSM7T, the type strain of B. amyloliquefaciens. We identified 66 bacterial genomes from the NCBI data bank with high similarity to DSM7T. Dendrograms based on complete rpoB nucleotide sequences and on core genome sequences, respectively, clustered into a clade consisting of three tightly linked branches: (1) B. amyloliquefaciens, (2) Bacillus siamensis, and (3) a conspecific group containing the type strains of B. velezensis, Bacillus methylotrophicus, and B. amyloliquefaciens subsp. plantarum. The three monophyletic clades shared a common mutation rate of 0.01 substitutions per nucleotide position, but were distantly related to Bacillus subtilis (0.1 substitutions per nucleotide position). The tight relatedness of the three clusters was corroborated by TETRA, dDDH, ANI, and AAI analysis of the core genomes, but dDDH and ANI values were found slightly below species level thresholds when B. amyloliquefaciens DSM7T genome sequence was used as query sequence. Due to these results, we propose that the B. amyloliquefaciens clade should be considered as a taxonomic unit above of species level, designated here as "operational group B. amyloliquefaciens" consisting of the soil borne B. amyloliquefaciens, and plant associated B. siamensis and B. velezensis, whose members are closely related and allow identifying changes on the genomic level due to developing the plant-associated life-style.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University Nanjing, China
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig-Universität Giessen Giessen, Germany
| | | | - Rainer Borriss
- Fachgebiet Phytomedizin, Institut für Agrar- und Gartenbauwissenschaften, Humboldt Universität zu BerlinBerlin, Germany; Nord Reet UGGreifswald, Germany
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35
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Fan B, Li YL, Li L, Peng XJ, Bu C, Wu XQ, Borriss R. Malonylome of the plant growth promoting rhizobacterium with potent biocontrol activity, Bacillus amyloliquefaciens FZB42. Data Brief 2016; 10:548-550. [PMID: 28070544 PMCID: PMC5219606 DOI: 10.1016/j.dib.2016.12.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 12/09/2016] [Accepted: 12/14/2016] [Indexed: 01/13/2023] Open
Abstract
The data presented in this article are related to the publication entitled "Malonylome analysis of rhizobacterium Bacillus amyloliquefaciens FZB42 reveals involvement of lysine malonylation in polyketide synthesis and plant-bacteria interactions"(doi:10.1016/j.jprot.2016.11.022) (B. Fan, Y. Li, L. Li et al.) [1]. This article presented the raw information of all malonyllysine sites identified by LC-MS/MS in the Bacillus amyloliquefaciens FZB42. Further, the functional features and conservation of the malonylated peptide/proteins were analyzed and made publicly available to enable critical or extended analyses.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China
| | - Yu-Long Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China
| | - Lei Li
- RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, 97080 Würzburg, Germany
| | - Xiao-Jun Peng
- Jingjie PTM Biolabs (Hangzhou) Co. Ltd., Hangzhou 310018, China
| | - Chen Bu
- Jingjie PTM Biolabs (Hangzhou) Co. Ltd., Hangzhou 310018, China
| | - Xiao-Qin Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China
| | - Rainer Borriss
- Fachgebiet Phytomedizin, Albrecht Daniel Thaer Institut für Agrar- und Gartenbauwissenschaften, Lebenswissenschaftliche Fakultät, Humboldt Universität zu Berlin, 14195 Berlin, Germany
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Zhang N, Yang D, Kendall JRA, Borriss R, Druzhinina IS, Kubicek CP, Shen Q, Zhang R. Comparative Genomic Analysis of Bacillus amyloliquefaciens and Bacillus subtilis Reveals Evolutional Traits for Adaptation to Plant-Associated Habitats. Front Microbiol 2016; 7:2039. [PMID: 28066362 PMCID: PMC5169363 DOI: 10.3389/fmicb.2016.02039] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 12/05/2016] [Indexed: 12/22/2022] Open
Abstract
Bacillus subtilis and its sister species B. amyloliquefaciens comprise an evolutionary compact but physiologically versatile group of bacteria that includes strains isolated from diverse habitats. Many of these strains are used as plant growth-promoting rhizobacteria (PGPR) in agriculture and a plant-specialized subspecies of B. amyloliquefaciens-B. amyloliquefaciens subsp. plantarum, has recently been recognized, here we used 31 whole genomes [including two newly sequenced PGPR strains: B. amyloliquefaciens NJN-6 isolated from Musa sp. (banana) and B. subtilis HJ5 from Gossypium sp. (cotton)] to perform comparative analysis and investigate the genomic characteristics and evolution traits of both species in different niches. Phylogenomic analysis indicated that strains isolated from plant-associated (PA) habitats could be distinguished from those from non-plant-associated (nPA) niches in both species. The core genomes of PA strains are more abundant in genes relevant to intermediary metabolism and secondary metabolites biosynthesis as compared with those of nPA strains, and they also possess additional specific genes involved in utilization of plant-derived substrates and synthesis of antibiotics. A further gene gain/loss analysis indicated that only a few of these specific genes (18/192 for B. amyloliquefaciens and 53/688 for B. subtilis) were acquired by PA strains at the initial divergence event, but most were obtained successively by different subgroups of PA stains during the evolutional process. This study demonstrated the genomic differences between PA and nPA B. amyloliquefaciens and B. subtilis from different niches and the involved evolutional traits, and has implications for screening of PGPR strains in agricultural production.
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Affiliation(s)
- Nan Zhang
- Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural UniversityNanjing, China
| | - Dongqing Yang
- Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural UniversityNanjing, China
| | - Joshua R. A. Kendall
- Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural UniversityNanjing, China
- Department of Science and Technology, Evangel UniversitySpringfield, IL, USA
| | - Rainer Borriss
- Fachgebiet Phytomedizin, Institut für Agrar- und Gartenbauwissenschaften, Humboldt- Universität zu BerlinGermany
| | - Irina S. Druzhinina
- Research Area Biotechnology and Microbiology, Institute of Chemical Engineering, Vienna University of TechnologyVienna, Austria
| | - Christian P. Kubicek
- Research Area Biotechnology and Microbiology, Institute of Chemical Engineering, Vienna University of TechnologyVienna, Austria
| | - Qirong Shen
- Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural UniversityNanjing, China
| | - Ruifu Zhang
- Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization, National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing Agricultural UniversityNanjing, China
- Key Laboratory of Microbial Resources Collection and Preservation, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural SciencesBeijing, China
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Abstract
The alternative sigma factor D is known to be involved in at least three biological processes in Bacilli: flagellin synthesis, methyl-accepting chemotaxis and autolysin synthesis. Although many Bacillus genes have been identified as SigD regulon, the list may be not be complete. With microarray-based systemic screening, we found a set of genes downregulated in the sigD knockout mutant of the plant growth-promoting rhizobacterium B. amyloliquefaciens subsp. plantarum FZB42. Eight genes (appA, blsA, dhaS, spoVG, yqgA, RBAM_004640, RBAM_018080 and ytk) were further confirmed by quantitative PCR and/or northern blot to be controlled by SigD at the transcriptional level. These genes are hitherto not reported to be controlled by SigD. Among them, four genes are of unknown function and two genes (RBAM_004640 and RBAM_018080), absent in the model strain B. subtilis 168, are unique to B. amyloliquefaciens stains. The eight genes are involved in sporulation, biofilm formation, metabolite transport and several other functions. These findings extend our knowledge of the regulatory network governed by SigD in Bacillus and will further help to decipher the roles of the genes.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China.,Institut für Biologie/Bakteriengenetik, Humboldt Universität zu Berlin, Chausseestrasse 117, Berlin D-10115, Germany
| | - Yu-Long Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Aruljothi Mariappan
- Institut für Biologie/Bakteriengenetik, Humboldt Universität zu Berlin, Chausseestrasse 117, Berlin D-10115, Germany
| | - Anke Becker
- LOEWE Center for Synthetic Microbiology, Marburg an der Lahn, Philipps-Universität Marburg, Marburg 35037, Germany
| | - Xiao-Qin Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Rainer Borriss
- Institut für Biologie/Bakteriengenetik, Humboldt Universität zu Berlin, Chausseestrasse 117, Berlin D-10115, Germany .,Fachgebiet Phytomedizin, Albrecht Daniel Thaer Institut für Agrar- und Gartenbauwissenschaften, Lebenswissenschaftliche Fakultät, Humboldt Universität zu Berlin, Berlin 14195, Germany
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38
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Fan B, Li YL, Li L, Peng XJ, Bu C, Wu XQ, Borriss R. Malonylome analysis of rhizobacterium Bacillus amyloliquefaciens FZB42 reveals involvement of lysine malonylation in polyketide synthesis and plant-bacteria interactions. J Proteomics 2016; 154:1-12. [PMID: 27939684 DOI: 10.1016/j.jprot.2016.11.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/24/2016] [Accepted: 11/30/2016] [Indexed: 12/21/2022]
Abstract
Using the combination of affinity enrichment and high-resolution LC-MS/MS analysis, we performed a large-scale lysine malonylation analysis in the model representative of Gram-positive plant growth-promoting rhizobacteria (PGPR), Bacillus amyloliquefaciens FZB42. Altogether, 809 malonyllysine sites in 382 proteins were identified. The bioinformatic analysis revealed that lysine malonylation occurs on the proteins involved in a variety of biological functions including central carbon metabolism, fatty acid biosynthesis and metabolism, NAD(P) binding and translation machinery. A group of proteins known to be implicated in rhizobacterium-plant interaction were also malonylated; especially, the enzymes responsible for antibiotic production including polyketide synthases (PKSs) and nonribosomal peptide synthases (NRPSs) were highly malonylated. Furthermore, our analysis showed malonylation occurred on proteins structure with higher surface accessibility and appeared to be conserved in many bacteria but not in archaea. The results provide us valuable insights into the potential roles of lysine malonylation in governing bacterial metabolism and cellular processes. BIOLOGICAL SIGNIFICANCE Although in mammalian cells some important findings have been discovered that protein malonylation is related to basic metabolism and chronic disease, few studies have been performed on prokaryotic malonylome. In this study, we determined the malonylation profiles of Bacillus amyloliquefaciens FZB42, a model organism of Gram-positive plant growth-promoting rhizobacteria. FZB42 is known for the extensive investigations on its strong ability of producing antimicrobial polyketides and its potent activities of stimulating plant growth. Our analysis shows that malonylation is highly related to the polyketide synthases and the proteins involved bacterial interactions with plants. The results not only provide one of the first malonylomes for exploring the biochemical nature of bacterial proteins, but also shed light on the better understanding of bacterial antibiotic biosynthesis and plant-microbe interaction.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China.
| | - Yu-Long Li
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China.
| | - Lei Li
- RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, 97080 Würzburg, Germany.
| | - Xiao-Jun Peng
- Jingjie PTM Biolabs (Hangzhou) Co. Ltd., Hangzhou 310018, China.
| | - Chen Bu
- Jingjie PTM Biolabs (Hangzhou) Co. Ltd., Hangzhou 310018, China.
| | - Xiao-Qin Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China.
| | - Rainer Borriss
- Fachgebiet Phytomedizin, Albrecht Daniel Thaer Institut für Agrar- und Gartenbauwissenschaften, Lebenswissenschaftliche Fakultät, Humboldt Universität zu Berlin, 14195 Berlin, Germany.
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Wu L, Wu HJ, Qiao J, Gao X, Borriss R. Novel Routes for Improving Biocontrol Activity of Bacillus Based Bioinoculants. Front Microbiol 2015; 6:1395. [PMID: 26696998 PMCID: PMC4674565 DOI: 10.3389/fmicb.2015.01395] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/23/2015] [Indexed: 11/14/2022] Open
Abstract
Biocontrol (BC) formulations prepared from plant-growth-promoting bacteria are increasingly applied in sustainable agriculture. Especially inoculants prepared from endospore-forming Bacillus strains have been proven as efficient and environmental-friendly alternative to chemical pesticides due to their long shelf life, which is comparable with that of agrochemicals. However, these formulations of the first generation are sometimes hampered in their action and do not fulfill in each case the expectations of the appliers. In this review we use the well-known plant-associated Bacillus amyloliquefaciens type strain FZB42 as example for the successful application of different techniques offered today by comparative, evolutionary and functional genomics, site-directed mutagenesis and strain construction including marker removal, for paving the way for preparing a novel generation of BC agents.
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Affiliation(s)
- Liming Wu
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Agriculture Nanjing, China
| | - Hui-Jun Wu
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Agriculture Nanjing, China
| | - Junqing Qiao
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Agriculture Nanjing, China ; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences Nanjing, China
| | - Xuewen Gao
- College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Agriculture Nanjing, China
| | - Rainer Borriss
- Fachgebiet Phytomedizin, Institut für Agrar- und Gartenbauwissenschaften, Humboldt-Universität zu Berlin Berlin, Germany ; Nord Reet UG Greifswald, Germany
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40
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Fan B, Li L, Chao Y, Förstner K, Vogel J, Borriss R, Wu XQ. dRNA-Seq Reveals Genomewide TSSs and Noncoding RNAs of Plant Beneficial Rhizobacterium Bacillus amyloliquefaciens FZB42. PLoS One 2015; 10:e0142002. [PMID: 26540162 PMCID: PMC4634765 DOI: 10.1371/journal.pone.0142002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/15/2015] [Indexed: 12/13/2022] Open
Abstract
Bacillus amyloliquefaciens subsp. plantarum FZB42 is a representative of Gram-positive plant-growth-promoting rhizobacteria (PGPR) that inhabit plant root environments. In order to better understand the molecular mechanisms of bacteria-plant symbiosis, we have systematically analyzed the primary transcriptome of strain FZB42 grown under rhizosphere-mimicking conditions using differential RNA sequencing (dRNA-seq). Our analysis revealed 4,877 transcription start sites for protein-coding genes, identified genes differentially expressed under different growth conditions, and corrected many previously mis-annotated genes. We also identified a large number of riboswitches and cis-encoded antisense RNAs, as well as trans-encoded small noncoding RNAs that may play important roles in the gene regulation of Bacillus. Overall, our analyses provided a landscape of Bacillus primary transcriptome and improved the knowledge of rhizobacteria-host interactions.
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Affiliation(s)
- Ben Fan
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China
- * E-mail: (BF); (XW)
| | - Lei Li
- RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, 97080 Würzburg, Germany
| | - Yanjie Chao
- RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, 97080 Würzburg, Germany
| | - Konrad Förstner
- RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, 97080 Würzburg, Germany
| | - Jörg Vogel
- RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, 97080 Würzburg, Germany
| | - Rainer Borriss
- Fachgebiet Phytomedizin, Albrecht Daniel Thaer Institut für Agrar- und Gartenbauwissenschaften, Lebenswissenschaftliche Fakultät, Humboldt Universität zu Berlin, 14195 Berlin, Germany
| | - Xiao-Qin Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, 210037 Nanjing, China
- * E-mail: (BF); (XW)
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41
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Medema MH, Kottmann R, Yilmaz P, Cummings M, Biggins JB, Blin K, de Bruijn I, Chooi YH, Claesen J, Coates RC, Cruz-Morales P, Duddela S, Düsterhus S, Edwards DJ, Fewer DP, Garg N, Geiger C, Gomez-Escribano JP, Greule A, Hadjithomas M, Haines AS, Helfrich EJN, Hillwig ML, Ishida K, Jones AC, Jones CS, Jungmann K, Kegler C, Kim HU, Kötter P, Krug D, Masschelein J, Melnik AV, Mantovani SM, Monroe EA, Moore M, Moss N, Nützmann HW, Pan G, Pati A, Petras D, Reen FJ, Rosconi F, Rui Z, Tian Z, Tobias NJ, Tsunematsu Y, Wiemann P, Wyckoff E, Yan X, Yim G, Yu F, Xie Y, Aigle B, Apel AK, Balibar CJ, Balskus EP, Barona-Gómez F, Bechthold A, Bode HB, Borriss R, Brady SF, Brakhage AA, Caffrey P, Cheng YQ, Clardy J, Cox RJ, De Mot R, Donadio S, Donia MS, van der Donk WA, Dorrestein PC, Doyle S, Driessen AJM, Ehling-Schulz M, Entian KD, Fischbach MA, Gerwick L, Gerwick WH, Gross H, Gust B, Hertweck C, Höfte M, Jensen SE, Ju J, Katz L, Kaysser L, Klassen JL, Keller NP, Kormanec J, Kuipers OP, Kuzuyama T, Kyrpides NC, Kwon HJ, Lautru S, Lavigne R, Lee CY, Linquan B, Liu X, Liu W, Luzhetskyy A, Mahmud T, Mast Y, Méndez C, Metsä-Ketelä M, Micklefield J, Mitchell DA, Moore BS, Moreira LM, Müller R, Neilan BA, Nett M, Nielsen J, O’Gara F, Oikawa H, Osbourn A, Osburne MS, Ostash B, Payne SM, Pernodet JL, Petricek M, Piel J, Ploux O, Raaijmakers JM, Salas JA, Schmitt EK, Scott B, Seipke RF, Shen B, Sherman DH, Sivonen K, Smanski MJ, Sosio M, Stegmann E, Süssmuth RD, Tahlan K, Thomas CM, Tang Y, Truman AW, Viaud M, Walton JD, Walsh CT, Weber T, van Wezel GP, Wilkinson B, Willey JM, Wohlleben W, Wright GD, Ziemert N, Zhang C, Zotchev SB, Breitling R, Takano E, Glöckner FO. Minimum Information about a Biosynthetic Gene cluster. Nat Chem Biol 2015; 11:625-31. [PMID: 26284661 PMCID: PMC5714517 DOI: 10.1038/nchembio.1890] [Citation(s) in RCA: 544] [Impact Index Per Article: 60.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Marnix H Medema
- Microbial Genomics and Bioinformatics Research Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
| | - Renzo Kottmann
- Microbial Genomics and Bioinformatics Research Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
| | - Pelin Yilmaz
- Microbial Genomics and Bioinformatics Research Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
| | - Matthew Cummings
- Manchester Centre for Synthetic Biology ofFine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - John B Biggins
- Laboratory of Genetically Encoded Small Molecules, Howard Hughes Medical Institute, The Rockefeller University, New York, New York, USA
| | - Kai Blin
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark
| | - Irene de Bruijn
- Netherlands Institute of Ecology (NIOO-KNAW), Department of Microbial Ecology, Wageningen, the Netherlands
| | - Yit Heng Chooi
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California, USA,Departmentof Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California, USA,School of Chemistry and Biochemistry, University of Western Australia, Perth, Western Australia, Australia
| | - Jan Claesen
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California, USA,California Institute for Quantitative Biosciences, University of California San Francisco, San Francisco, California, USA
| | - R Cameron Coates
- Department of Energy (DOE) Joint Genome Institute, Walnut Creek, California, USA
| | - Pablo Cruz-Morales
- Evolution of Metabolic Diversity Laboratory, Unidad de Genómica Avanzada (Langebio), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Irapuato, Guanajuato, México
| | - Srikanth Duddela
- Helmholtz Institute for Pharmaceutical Research, Helmholtz Centre for Infection Research and Department of Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
| | - Stephanie Düsterhus
- Institute for Molecular Biosciences, Goethe University, Frankfurt am Main, Germany
| | - Daniel J Edwards
- Department of Chemistry and Biochemistry, California State University, Chico, California, USA
| | - David P Fewer
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Neha Garg
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
| | - Christoph Geiger
- Institute for Molecular Biosciences, Goethe University, Frankfurt am Main, Germany
| | | | - Anja Greule
- Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Michalis Hadjithomas
- Department of Energy (DOE) Joint Genome Institute, Walnut Creek, California, USA
| | | | - Eric J N Helfrich
- Institute of Microbiology, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich, Switzerland
| | - Matthew L Hillwig
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Keishi Ishida
- Leibniz Institute for Natural Product Research and Infection Biology (HKI), Jena, Germany
| | - Adam C Jones
- Gordon and Betty Moore Foundation, Palo Alto, California, USA
| | - Carla S Jones
- Sustainable Studies Program, Roosevelt University Chicago, Illinois, USA
| | - Katrin Jungmann
- Helmholtz Institute for Pharmaceutical Research, Helmholtz Centre for Infection Research and Department of Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
| | - Carsten Kegler
- Merck Stiftungsprofessur für Molekular Biotechnologie, Goethe Universität Frankfurt, Fachbereich Biowissenschaften, Frankfurt, Germany
| | - Hyun Uk Kim
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark,BioInformatics Research Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Peter Kötter
- Institute for Molecular Biosciences, Goethe University, Frankfurt am Main, Germany
| | - Daniel Krug
- Helmholtz Institute for Pharmaceutical Research, Helmholtz Centre for Infection Research and Department of Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
| | - Joleen Masschelein
- Laboratory of Gene Technology, KU Leuven, Heverlee, Belgium,Laboratory of Food Microbiology, KU Leuven, Heverlee, Belgium
| | - Alexey V Melnik
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
| | - Simone M Mantovani
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Emily A Monroe
- Department of Biology, William Paterson University, Wayne, New Jersey, USA
| | - Marcus Moore
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada
| | - Nathan Moss
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Hans-Wilhelm Nützmann
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Guohui Pan
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA
| | - Amrita Pati
- Department of Energy (DOE) Joint Genome Institute, Walnut Creek, California, USA
| | - Daniel Petras
- Institut für Chemie, Technische Universität Berlin, Berlin, Germany
| | - F Jerry Reen
- BIOMERIT Research Centre, School of Microbiology, University College Cork–National University of Ireland, Cork, Ireland
| | - Federico Rosconi
- Departamento de Bioquímica y Genómica Microbianas, IBCE, Montevideo, Uruguay
| | - Zhe Rui
- Energy Biosciences Institute, University of California Berkeley, Berkeley, California, USA,Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, California, USA
| | - Zhenhua Tian
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Nicholas J Tobias
- Merck Stiftungsprofessur für Molekular Biotechnologie, Goethe Universität Frankfurt, Fachbereich Biowissenschaften, Frankfurt, Germany
| | - Yuta Tsunematsu
- Leibniz Institute for Natural Product Research and Infection Biology (HKI), Jena, Germany,Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Philipp Wiemann
- Department of Medical Microbiology and Immunology, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Elizabeth Wyckoff
- Department of Molecular Biosciences, The University of Texas, Austin, Texas, USA,Institute for Cellular and Molecular Biology, The University of Texas, Austin, Texas, USA
| | - Xiaohui Yan
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA
| | - Grace Yim
- Department of Biochemistry and Biomedical Sciences, The M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
| | - Fengan Yu
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan, USA,Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, USA,Department of Chemistry, University of Michigan, Ann Arbor, Michigan, USA,Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Yunchang Xie
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Bertrand Aigle
- Dynamique des Génomes et Adaptation Microbienne, Université de Lorraine and Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche (UMR) 1128, Vandoeuvre-lès-Nancy, France
| | - Alexander K Apel
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Tübingen, Germany,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Carl J Balibar
- Infectious Disease Research, Merck Research Laboratories, Kenilworth, New Jersey, USA
| | - Emily P Balskus
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, USA
| | - Francisco Barona-Gómez
- Evolution of Metabolic Diversity Laboratory, Unidad de Genómica Avanzada (Langebio), Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Irapuato, Guanajuato, México
| | - Andreas Bechthold
- Department of Pharmaceutical Biology and Biotechnology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Helge B Bode
- Merck Stiftungsprofessur für Molekular Biotechnologie, Goethe Universität Frankfurt, Fachbereich Biowissenschaften, Frankfurt, Germany,Buchmann Institute for Molecular Life Sciences (BMLS), Goethe Universität Frankfurt, Frankfurt, Germany
| | - Rainer Borriss
- Fachbereich Phytomedizin, Albrecht Thaer Institut, Humboldt Universität Berlin, Berlin, Germany
| | - Sean F Brady
- Laboratory of Genetically Encoded Small Molecules, Howard Hughes Medical Institute, The Rockefeller University, New York, New York, USA
| | - Axel A Brakhage
- Leibniz Institute for Natural Product Research and Infection Biology (HKI), Jena, Germany
| | - Patrick Caffrey
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
| | - Yi-Qiang Cheng
- UNT System College of Pharmacy, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Russell J Cox
- Institut für Organische Chemie, Leibniz Universität Hannover, Hannover, Germany,School of Chemistry, University of Bristol, Bristol, UK
| | - René De Mot
- Centre of Microbial and Plant Genetics, Faculty of Bioscience Engineering, University of Leuven, Heverlee, Belgium
| | | | - Mohamed S Donia
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, USA
| | - Wilfred A van der Donk
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois, USA,Howard Hughes Medical Institute, USA
| | - Pieter C Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA,Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA,Collaborative Mass Spectrometry Innovation Center, University of California San Diego, La Jolla, California, USA
| | - Sean Doyle
- Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
| | - Arnold J M Driessen
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute and Zernike Institute for Advanced Materials, University of Groningen, Groningen, the Netherlands
| | - Monika Ehling-Schulz
- Functional Microbiology, Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Karl-Dieter Entian
- Institute for Molecular Biosciences, Goethe University, Frankfurt am Main, Germany
| | - Michael A Fischbach
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California, USA,California Institute for Quantitative Biosciences, University of California San Francisco, San Francisco, California, USA
| | - Lena Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - William H Gerwick
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA,Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Harald Gross
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Tübingen, Germany,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Bertolt Gust
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Tübingen, Germany,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Christian Hertweck
- Leibniz Institute for Natural Product Research and Infection Biology (HKI), Jena, Germany,Friedrich Schiller University, Jena, Germany
| | - Monica Höfte
- Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Susan E Jensen
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Jianhua Ju
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Leonard Katz
- Synthetic Biology Engineering Research Center (SynBERC), University of California Emeryville, Emeryville, California, USA
| | - Leonard Kaysser
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Tübingen, Germany,German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Jonathan L Klassen
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Nancy P Keller
- Department of Medical Microbiology and Immunology, University of Wisconsin–Madison, Madison, Wisconsin, USA,Department of Bacteriology, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Jan Kormanec
- Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Oscar P Kuipers
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands
| | - Tomohisa Kuzuyama
- Biotechnology Research Center, The University of Tokyo, Tokyo, Japan
| | - Nikos C Kyrpides
- Department of Energy (DOE) Joint Genome Institute, Walnut Creek, California, USA,Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hyung-Jin Kwon
- Division of Bioscience and Bioinformatics, Myongji University, Yongin-si, Gyeonggi-Do, South Korea
| | - Sylvie Lautru
- Institute of Integrative Biology of the Cell (I2BC), Commissariat à l’Energie Atomique (CEA), Centre National de la Recherche Scientifique (CNRS), Université Paris Sud, Orsay, France
| | - Rob Lavigne
- Laboratory of Gene Technology, KU Leuven, Heverlee, Belgium
| | - Chia Y Lee
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Bai Linquan
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China,School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xinyu Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Wen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Andriy Luzhetskyy
- Helmholtz Institute for Pharmaceutical Research, Helmholtz Centre for Infection Research and Department of Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
| | - Taifo Mahmud
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon, USA
| | - Yvonne Mast
- Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
| | - Carmen Méndez
- Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Spain,Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, Oviedo, Spain
| | | | | | - Douglas A Mitchell
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois, USA
| | - Bradley S Moore
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA,Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, USA
| | - Leonilde M Moreira
- Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research, Helmholtz Centre for Infection Research and Department of Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
| | - Brett A Neilan
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Markus Nett
- Leibniz Institute for Natural Product Research and Infection Biology (HKI), Jena, Germany
| | - Jens Nielsen
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark,Department of Chemical and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Fergal O’Gara
- BIOMERIT Research Centre, School of Microbiology, University College Cork–National University of Ireland, Cork, Ireland,Curtin University, School of Biomedical Sciences, Perth, Western Australia, Australia
| | - Hideaki Oikawa
- Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Japan
| | - Anne Osbourn
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Marcia S Osburne
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Bohdan Ostash
- Department of Genetics and Biotechnology, Ivan Franko National University of Lviv, Lviv, Ukraine
| | - Shelley M Payne
- Department of Molecular Biosciences, The University of Texas, Austin, Texas, USA,Institute for Cellular and Molecular Biology, The University of Texas, Austin, Texas, USA
| | - Jean-Luc Pernodet
- Institute of Integrative Biology of the Cell (I2BC), Commissariat à l’Energie Atomique (CEA), Centre National de la Recherche Scientifique (CNRS), Université Paris Sud, Orsay, France
| | - Miroslav Petricek
- Institute of Microbiology, Academy of Sciences of the Czech Republic (ASCR), Prague, Czech Republic
| | - Jörn Piel
- Institute of Microbiology, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich, Switzerland
| | - Olivier Ploux
- Laboratoire Interdisciplinaire des Energies de Demain (LIED), UMR 8236 CNRS, Université Paris Diderot, Paris, France
| | - Jos M Raaijmakers
- Netherlands Institute of Ecology (NIOO-KNAW), Department of Microbial Ecology, Wageningen, the Netherlands
| | - José A Salas
- Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Spain
| | - Esther K Schmitt
- Novartis Institutes for BioMedical Research, Novartis Campus, Basel, Switzerland
| | - Barry Scott
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Ryan F Seipke
- Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Ben Shen
- Department of Chemistry, The Scripps Research Institute, Jupiter, Florida, USA,Molecular Therapeutics and Natural Products Library Initiative, The Scripps Research Institute, Jupiter, Florida, USA
| | - David H Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, Michigan, USA,Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, USA,Department of Chemistry, University of Michigan, Ann Arbor, Michigan, USA,Department of Microbiology & Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Kaarina Sivonen
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Michael J Smanski
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota–Twin Cities, Saint Paul, Minnesota, USA,BioTechnology Institute, University of Minnesota–Twin Cities, Saint Paul, Minnesota, USA
| | | | - Evi Stegmann
- German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany,Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
| | | | - Kapil Tahlan
- Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland, Canada
| | | | - Yi Tang
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California, USA,Departmentof Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California, USA
| | - Andrew W Truman
- Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Muriel Viaud
- Unité BIOlogie et GEstion des Risques en agriculture (BIOGER), Institut National de la Recherche Agronomique (INRA), Grignon, France
| | - Jonathan D Walton
- Department of Energy Great Lakes Bioenergy Research Center and Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, Michigan, USA
| | - Christopher T Walsh
- Chemistry, Engineering & Medicine for Human Health (ChEM-H) Institute, Stanford University, Stanford, California, USA
| | - Tilmann Weber
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Hørsholm, Denmark
| | - Gilles P van Wezel
- Molecular Biotechnology, Institute of Biology, Leiden University, Leiden, the Netherlands
| | - Barrie Wilkinson
- Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich, UK
| | - Joanne M Willey
- Hofstra North Shore–Long Island Jewish School of Medicine, Hempstead, New York, USA
| | - Wolfgang Wohlleben
- German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany,Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
| | - Gerard D Wright
- Department of Biochemistry and Biomedical Sciences, The M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
| | - Nadine Ziemert
- German Centre for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany,Microbiology/Biotechnology, Interfaculty Institute of Microbiology and Infection Medicine, Faculty of Science, University of Tübingen, Tübingen, Germany
| | - Changsheng Zhang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Sergey B Zotchev
- Department of Biotechnology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Rainer Breitling
- Manchester Centre for Synthetic Biology ofFine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Eriko Takano
- Manchester Centre for Synthetic Biology ofFine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - Frank Oliver Glöckner
- Microbial Genomics and Bioinformatics Research Group, Max Planck Institute for Marine Microbiology, Bremen, Germany,Jacobs University Bremen gGmbH, Bremen, Germany
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Vater J, Niu B, Dietel K, Borriss R. Characterization of Novel Fusaricidins Produced by Paenibacillus polymyxa-M1 Using MALDI-TOF Mass Spectrometry. J Am Soc Mass Spectrom 2015; 26:1548-1558. [PMID: 26100395 DOI: 10.1007/s13361-015-1130-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 02/18/2015] [Accepted: 03/03/2015] [Indexed: 06/04/2023]
Abstract
Paenibacillus polymyxa-M1 is a potent producer of bioactive compounds, such as lipopeptides, polyketides, and lantibiotics of biotechnological and medical interest. Genome sequencing revealed nine gene clusters for nonribosomal biosynthesis of such agents. Here we report on the investigation of the fusaricidins, a complex of cyclic lipopeptides containing 15-guanidino-3-hydroxypentadecanoic acid (GHPD) as fatty acid component by matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). More than 20 variants of these compounds were detected and characterized in detail. Mass spectrometric sequence analysis was performed by MALDI-LIFT-TOF/TOF fragment analysis. The obtained product ion spectra show a specific processing in the fatty acid part. GHPD is cleaved between the α- and ß-position yielding two fragments a and b, one bearing the end-standing guanidine group and another one comprising the residual two C-atoms of GHPD with the attached peptide moiety. The complete sequence of all fusaricidins was derived from sets of bn- and yn-ions. The fusaricidin complex can be divided into four lipopeptide families, three of them showing variations of the amino acid in position 3, Val or Ile for the first and Tyr or Phe for families 2 and 3, respectively. A collection of novel fusaricidins was detected differing from those of families 1-3 by an additional residue of 71 Da (family 4). LIFT-TOF/TOF fragment spectra of these species imply that in their peptide moiety, an Ala-residue is attached by an ester bond to the free hydroxyl group of Thr4. More than 10 novel fusaricidins were characterized mass spectrometrically.
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Affiliation(s)
- Joachim Vater
- Institut für Chemie, Technische Universität Berlin, Mueller-Breslau-Straße 10, 10623, Berlin, Germany,
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43
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Chowdhury SP, Uhl J, Grosch R, Alquéres S, Pittroff S, Dietel K, Schmitt-Kopplin P, Borriss R, Hartmann A. Cyclic Lipopeptides of Bacillus amyloliquefaciens subsp. plantarum Colonizing the Lettuce Rhizosphere Enhance Plant Defense Responses Toward the Bottom Rot Pathogen Rhizoctonia solani. Mol Plant Microbe Interact 2015; 28:984-95. [PMID: 26011557 DOI: 10.1094/mpmi-03-15-0066-r] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The commercially available inoculant Bacillus amyloliquefaciens FZB42 is able to considerably reduce lettuce bottom rot caused by Rhizoctonia solani. To understand the interaction between FZB42 and R. solani in the rhizosphere of lettuce, we used an axenic system with lettuce bacterized with FZB42 and inoculated with R. solani. Confocal laser scanning microscopy showed that FZB42 could delay the initial establishment of R. solani on the plants. To show which secondary metabolites of FZB42 are produced under these in-situ conditions, we developed an ultra-high performance liquid chromatography coupled to time of flight mass spectrometry-based method and identified surfactin, fengycin, and bacillomycin D in the lettuce rhizosphere. We hypothesized that lipopeptides and polyketides play a role in enhancing the plant defense responses in addition to the direct antagonistic effect toward R. solani and used a quantitative real-time polymerase chain reaction-based assay for marker genes involved in defense signaling pathways in lettuce. A significant higher expression of PDF 1.2 observed in the bacterized plants in response to subsequent pathogen challenge showed that FZB42 could enhance the lettuce defense response toward the fungal pathogen. To identify if surfactin or other nonribosomally synthesized secondary metabolites could elicit the observed enhanced defense gene expression, we examined two mutants of FZB42 deficient in production of surfactin and the lipopetides and polyketides, by expression analysis and pot experiments. In the absence of surfactin and other nonribosomally synthesized secondary metabolites, there was no enhanced PDF 1.2-mediated response to the pathogen challenge. Pot experiment results showed that the mutants failed to reduce disease incidence in lettuce as compared with the FZB42 wild type, indicating, that surfactin as well as other nonribosomally synthesized secondary metabolites play a role in the actual disease suppression and on lettuce health. In conclusion, our study showed that nonribosomally synthesized secondary metabolites of FZB42 are actually produced in the lettuce rhizosphere and contribute to the disease suppression by mediating plant defense gene expression toward the pathogen R. solani.
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Affiliation(s)
- Soumitra Paul Chowdhury
- 1 Research Unit Microbe-Plant Interactions, Department Environmental Sciences, Helmholtz Zentrum Muenchen, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Jenny Uhl
- 2 Research Unit Analytical Biogeochemistry, Department Environmental Sciences, Helmholtz Zentrum Muenchen
| | - Rita Grosch
- 3 Leibniz-Institute of Vegetable and Ornamental Crops, D-14979 Großbeeren, Germany
| | - Sylvia Alquéres
- 1 Research Unit Microbe-Plant Interactions, Department Environmental Sciences, Helmholtz Zentrum Muenchen, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Sabrina Pittroff
- 1 Research Unit Microbe-Plant Interactions, Department Environmental Sciences, Helmholtz Zentrum Muenchen, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | | | - Philippe Schmitt-Kopplin
- 2 Research Unit Analytical Biogeochemistry, Department Environmental Sciences, Helmholtz Zentrum Muenchen
- 5 Technische Universitaet Muenchen, Chair of Analytical Food Chemistry, Freising-Weihenstephan, Germany; and
| | - Rainer Borriss
- 4 ABiTEP GmbH, D-12489 Berlin, Germany
- 6 Fachgebiet Phytomedizin, Institut für Agrar-und Gartenbauwissenschaften, Humboldt-Universität zu Berlin, Germany
| | - Anton Hartmann
- 1 Research Unit Microbe-Plant Interactions, Department Environmental Sciences, Helmholtz Zentrum Muenchen, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
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44
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Wu L, Wu H, Chen L, Yu X, Borriss R, Gao X. Difficidin and bacilysin from Bacillus amyloliquefaciens FZB42 have antibacterial activity against Xanthomonas oryzae rice pathogens. Sci Rep 2015; 5:12975. [PMID: 26268540 PMCID: PMC4534799 DOI: 10.1038/srep12975] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 07/15/2015] [Indexed: 12/28/2022] Open
Abstract
Bacterial blight and bacterial leaf streak are serious, economically damaging, diseases of rice caused by the bacteria Xanthomonas oryzae pv. oryzae and X. oryzae pv. oryzicola. Bacillus amyloliquefaciens FZB42 was shown to possess biocontrol activity against these Xanthomonas strains by producing the antibiotic compounds difficidin and bacilysin. Analyses using fluorescence, scanning electron and transmission electron microscopy revealed difficidin and bacilysin caused changes in the cell wall and structure of Xanthomonas. Biological control experiments on rice plants demonstrated the ability of difficidin and bacilysin to suppress disease. Difficidin and bacilysin caused downregulated expression of genes involved in Xanthomonas virulence, cell division, and protein and cell wall synthesis. Taken together, our results highlight the potential of B. amyloliquefaciens FZB42 as a biocontrol agent against bacterial diseases of rice, and the utility of difficidin and bacilysin as antimicrobial compounds.
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Affiliation(s)
- Liming Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Lina Chen
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Xinfang Yu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | | | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
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Chowdhury SP, Hartmann A, Gao X, Borriss R. Biocontrol mechanism by root-associated Bacillus amyloliquefaciens FZB42 - a review. Front Microbiol 2015; 6:780. [PMID: 26284057 PMCID: PMC4517070 DOI: 10.3389/fmicb.2015.00780] [Citation(s) in RCA: 280] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 07/15/2015] [Indexed: 11/25/2022] Open
Abstract
Bacillus amyloliquefaciens subsp. plantarum FZB42 is a Gram-positive model bacterium for unraveling plant–microbe interactions in Bacilli. In addition, FZB42 is used commercially as biofertilizer and biocontrol agent in agriculture. Genome analysis of FZB42 revealed that nearly 10% of the FZB42 genome is devoted to synthesizing antimicrobial metabolites and their corresponding immunity genes. However, recent investigations in planta demonstrated that – except surfactin – the amount of such compounds found in vicinity of plant roots is relatively low, making doubtful a direct function in suppressing competing microflora including plant pathogens. These metabolites have been also suspected to induce changes within the rhizosphere microbial community, which might affect environment and plant health. However, sequence analysis of rhizosphere samples revealed only marginal changes in the root microbiome, suggesting that secondary metabolites are not the key factor in protecting plants from pathogenic microorganisms. On the other hand, adding FZB42 to plants compensate, at least in part, changes in the community structure caused by the pathogen, indicating an interesting mechanism of plant protection by beneficial Bacilli. Sub-lethal concentrations of cyclic lipopeptides and volatiles produced by plant-associated Bacilli trigger pathways of induced systemic resistance (ISR), which protect plants against attacks of pathogenic microbes, viruses, and nematodes. Stimulation of ISR by bacterial metabolites is likely the main mechanism responsible for biocontrol action of FZB42.
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Affiliation(s)
- Soumitra Paul Chowdhury
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Research Unit Microbe-Plant Interactions Neuherberg, Germany
| | - Anton Hartmann
- Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Research Unit Microbe-Plant Interactions Neuherberg, Germany
| | - XueWen Gao
- College of Plant Protection, Nanjing Agricultural University Nanjing, China ; Key Laboratory of Monitoring and Management of Crop Disease and Pest Insects, Ministry of Agriculture Nanjing, China
| | - Rainer Borriss
- ABiTEP GmbH Berlin, Germany ; Fachgebiet Phytomedizin, Institut für Agrar- und Gartenbauwissenschaften, Humboldt-Universität zu Berlin Berlin, Germany
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Yang Y, Wu HJ, Lin L, Zhu QQ, Borriss R, Gao XW. A plasmid-born Rap-Phr system regulates surfactin production, sporulation and genetic competence in the heterologous host, Bacillus subtilis OKB105. Appl Microbiol Biotechnol 2015; 99:7241-52. [PMID: 25921807 DOI: 10.1007/s00253-015-6604-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/08/2015] [Accepted: 04/10/2015] [Indexed: 01/16/2023]
Abstract
According to the change of environment, soil-dwelling Bacillus species differentiate into distinct subpopulations, such as spores and competent cells. Rap-Phr systems have been found to be involved in this differentiation circuit by interacting with major regulatory proteins, such as Spo0A, ComA, and DegU. In this study, we report that the plasmid-born RapQ-PhrQ system found in Bacillus amyloliquefaciens B3 affects three regulatory pathways in the heterologous host Bacillus subtilis. Expression of rapQ in B. subtilis OKB105 strongly suppressed its sporulation efficiency, transformation efficiency, and surfactin production. Co-expression of phrQ or addition of synthesized PhrQ pentapeptide in vitro could compensate for the suppressive effects caused by rapQ. We also found that expression of rapQ decreased the transcriptional level of the sporulation-related gene spoIIE and surfactin synthesis-related gene srfA; meanwhile, the transcriptional levels of these genes could be rescued by co-expression of phrQ and in vitro addition of PhrQ pentapeptide. Electrophoretic mobility shift (EMSA) result also showed that RapQ could bind to ComA without interacting with ComA binding to DNA, and PhrQ pentapeptide antagonized RapQ activity in vitro. These results indicate that this new plasmid-born RapQ-PhrQ system controls sporulation, competent cell formation, and surfactin production in B. subtilis OKB105.
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Affiliation(s)
- Yang Yang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
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Kierul K, Voigt B, Albrecht D, Chen XH, Carvalhais LC, Borriss R. Influence of root exudates on the extracellular proteome of the plant growth-promoting bacterium Bacillus amyloliquefaciens FZB42. Microbiology (Reading) 2015; 161:131-147. [DOI: 10.1099/mic.0.083576-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Kinga Kierul
- Institut für Biologie/Bakteriengenetik, Humboldt Universität Berlin, Chausseestrasse 117, 10115 Berlin, Germany
| | - Birgit Voigt
- Institut für Mikrobiologie, Ernst-Moritz-Arndt Universität, Greifswald, Germany
| | - Dirk Albrecht
- Institut für Mikrobiologie, Ernst-Moritz-Arndt Universität, Greifswald, Germany
| | - Xiao-Hua Chen
- Institut für Biologie/Bakteriengenetik, Humboldt Universität Berlin, Chausseestrasse 117, 10115 Berlin, Germany
| | - Lilia C. Carvalhais
- Molecular Plant Nutrition, University of Hohenheim, Stuttgart, Germany
- Institut für Biologie/Bakteriengenetik, Humboldt Universität Berlin, Chausseestrasse 117, 10115 Berlin, Germany
| | - Rainer Borriss
- ABiTEP GmbH, Berlin, Germany
- Institut für Biologie/Bakteriengenetik, Humboldt Universität Berlin, Chausseestrasse 117, 10115 Berlin, Germany
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Wu L, Wu H, Chen L, Xie S, Zang H, Borriss R, Gao X. Bacilysin from Bacillus amyloliquefaciens FZB42 has specific bactericidal activity against harmful algal bloom species. Appl Environ Microbiol 2014; 80:7512-20. [PMID: 25261512 PMCID: PMC4249228 DOI: 10.1128/aem.02605-14] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 09/19/2014] [Indexed: 02/04/2023] Open
Abstract
Harmful algal blooms, caused by massive and exceptional overgrowth of microalgae and cyanobacteria, are a serious environmental problem worldwide : In the present study, we looked for Bacillus strains with sufficiently strong anticyanobacterial activity to be used as biocontrol agents. Among 24 strains, Bacillus amyloliquefaciens FZB42 showed the strongest bactericidal activity against Microcystis aeruginosa, with a kill rate of 98.78%. The synthesis of the anticyanobacterial substance did not depend on Sfp, an enzyme that catalyzes a necessary processing step in the nonribosomal synthesis of lipopeptides and polyketides, but was associated with the aro gene cluster that is involved in the synthesis of the sfp-independent antibiotic bacilysin. Disruption of bacB, the gene in the cluster responsible for synthesizing bacilysin, or supplementation with the antagonist N-acetylglucosamine abolished the inhibitory effect, but this was restored when bacilysin synthesis was complemented. Bacilysin caused apparent changes in the algal cell wall and cell organelle membranes, and this resulted in cell lysis. Meanwhile, there was downregulated expression of glmS, psbA1, mcyB, and ftsZ-genes involved in peptidoglycan synthesis, photosynthesis, microcystin synthesis, and cell division, respectively. In addition, bacilysin suppressed the growth of other harmful algal species. In summary, bacilysin produced by B. amyloliquefaciens FZB42 has anticyanobacterial activity and thus could be developed as a biocontrol agent to mitigate the effects of harmful algal blooms.
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Affiliation(s)
- Liming Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Huijun Wu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Lina Chen
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Shanshan Xie
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | - Haoyu Zang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | | | - Xuewen Gao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
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Budiharjo A, Chowdhury SP, Dietel K, Beator B, Dolgova O, Fan B, Bleiss W, Ziegler J, Schmid M, Hartmann A, Borriss R. Transposon mutagenesis of the plant-associated Bacillus amyloliquefaciens ssp. plantarum FZB42 revealed that the nfrA and RBAM17410 genes are involved in plant-microbe-interactions. PLoS One 2014; 9:e98267. [PMID: 24847778 PMCID: PMC4029887 DOI: 10.1371/journal.pone.0098267] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/29/2014] [Indexed: 11/18/2022] Open
Abstract
Bacillus amyloliquefaciens ssp. plantarum FZB42 represents the prototype of Gram-positive plant growth promoting and biocontrol bacteria. In this study, we applied transposon mutagenesis to generate a transposon library, which was screened for genes involved in multicellular behavior and biofilm formation on roots as a prerequisite of plant growth promoting activity. Transposon insertion sites were determined by rescue-cloning followed by DNA sequencing. As in B. subtilis, the global transcriptional regulator DegU was identified as an activator of genes necessary for swarming and biofilm formation, and the DegU-mutant of FZB42 was found impaired in efficient root colonization. Direct screening of 3,000 transposon insertion mutants for plant-growth-promotion revealed the gene products of nfrA and RBAM_017140 to be essential for beneficial effects exerted by FZB42 on plants. We analyzed the performance of GFP-labeled wild-type and transposon mutants in the colonization of lettuce roots using confocal laser scanning microscopy. While the wild-type strain heavily colonized root surfaces, the nfrA mutant did not colonize lettuce roots, although it was not impaired in growth in laboratory cultures, biofilm formation and swarming motility on agar plates. The RBAM17410 gene, occurring in only a few members of the B. subtilis species complex, was directly involved in plant growth promotion. None of the mutant strains were affected in producing the plant growth hormone auxin. We hypothesize that the nfrA gene product is essential for overcoming the stress caused by plant response towards bacterial root colonization.
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Affiliation(s)
- Anto Budiharjo
- Bakteriengenetik, Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany
| | - Soumitra Paul Chowdhury
- Research Unit Microbe-Plant Interactions, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | | | - Barbara Beator
- Bakteriengenetik, Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany
| | | | - Ben Fan
- Bakteriengenetik, Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany
| | - Wilfrid Bleiss
- Molekulare Parasitologie, Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany
| | - Jörg Ziegler
- Abteilung Molekulare Signalverarbeitung, Leibniz-Institut für Pflanzenbiochemie, Halle/Saale, Germany
| | - Michael Schmid
- Research Unit Microbe-Plant Interactions, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Anton Hartmann
- Research Unit Microbe-Plant Interactions, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - Rainer Borriss
- Bakteriengenetik, Institut für Biologie, Humboldt Universität Berlin, Berlin, Germany
- ABiTEP GmbH, Berlin, Germany
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Neubauer S, Dolgova O, Präg G, Borriss R, Makarewicz O. Substitutional analysis of the C-terminal domain of AbrB revealed its essential role in DNA-binding activity. PLoS One 2014; 9:e97254. [PMID: 24832089 PMCID: PMC4022651 DOI: 10.1371/journal.pone.0097254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 04/16/2014] [Indexed: 11/28/2022] Open
Abstract
The global transition state regulator AbrB controls more than 100 genes of the Bacillus relatives and is known to interact with varying DNA-sequences. The DNA-binding domain of the AbrB-like proteins was proposed to be located exclusively within the amino-terminal ends. However, the recognition of DNA, and specificity of the binding mechanism, remains elusive still in view of highly differing recognition sites. Here we present a substitutional analysis to examine the role of the carboxy-terminal domain of AbrB from Bacillus subtilis and Bacillus amyloliquefaciens. Our results demonstrate that the carboxy-terminal domains of AbrB affect the DNA-binding properties of the tetrameric AbrB. Most likely, the C-termini are responsible for the cooperative character observed for AbrB interaction with some DNA targets like tycA and phyC.
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Affiliation(s)
- Svetlana Neubauer
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
| | - Olga Dolgova
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
| | - Gregory Präg
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
| | - Rainer Borriss
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
| | - Oliwia Makarewicz
- Institute of Biology, Humboldt University of Berlin, Berlin, Germany
- Center for Infectious Diseases and Infection Control, Jena University Hospital, Jena, Germany
- * E-mail:
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